{"bikes":[{"slug":"aprilia-rs660-2021","make":"Aprilia","model":"RS 660","years":"2021-2024","category":"twin","engine":{"redline_rpm":11500,"peak_power_hp":100,"peak_power_rpm":10500,"peak_torque_nm":67.0,"peak_torque_rpm":8500},"drivetrain":{"primary_ratio":2.051,"primary_teeth":"80/39","gear_ratios":[2.706,2.063,1.625,1.368,1.19,1.045],"gear_teeth":["46/17","33/16","39/24","26/19","25/21","23/22"],"stock_front":17,"stock_rear":43,"chain":"520"},"rear_tire":"180/55ZR17","wet_weight_kg":183,"notes":["Gearbox tooth pairs and primary drive (39/80) taken from the official Aprilia RS 660 Service Station Manual 'Transmission - DRIVE RATIOS' table; the manual prints pairs as driving/driven (e.g. 1st '17/46'), recorded here as driven/driving so ratio = teeth numerator / denominator.","Ratios computed from teeth to 3 decimals: primary 80/39=2.051; 1st 46/17=2.706; 2nd 33/16=2.0625 (recorded 2.063, round half up); 3rd 39/24=1.625; 4th 26/19=1.368; 5th 25/21=1.190; 6th 23/22=1.045. Final drive 43/17=2.529.","Final drive 17/43 also confirmed by Aprilia's official press tech-spec sheet ('Chain, with drive ratio: 17/43') and AP Workshops final-drive data.","Chain per service manual: Regina 520 ZRA (model '520 - 135 - ZRA'), 110 links with sealed master link.","Redline: Aprilia does not publish an official redline figure. 11,500 rpm is the rev limiter reported by RevZilla (2021 track review, explicit '11,500-rpm rev limiter') and corroborated by Motorcycle.com (2026 RS 660 Factory review: updated tune 'bumps the rev limiter up 300 rpm to 11,800', implying 11,500 baseline). Service manual lists 'Engine revs at maximum speed 10500 +/- 100 rpm', which is engine speed at top speed, not the limiter.","Power/torque are manufacturer claims at the crankshaft: 100 hp (73.5 kW) @ 10,500 rpm, 67.0 Nm (49.4 ft-lb) @ 8,500 rpm (Aprilia tech-spec sheet and 2021 US spec sheet).","Wet weight 183 kg is Aprilia's kerb weight including fluids (service manual 183 kg / 403.44 lb; 2021 US spec sheet 403 lbs). Dry weight claim is 169 kg.","Rear tire 180/55 ZR17 standard; Aprilia lists 180/60 ZR17 as an approved alternative fitment.","Generation: first-generation RS 660, model years 2021-2024 (pre-2025 restyle). The 2025+ restyled model and 2026 Factory (rev limiter raised to 11,800 rpm, retuned engine) are not covered by this record; gearing for those years not separately verified."],"sources":[{"field_group":"drivetrain","url":"https://cdn.webshopapp.com/shops/233369/files/369286203/aprilia-rs660.pdf","what":"Official Aprilia RS 660 Service Station Manual (415 pp): DRIVE RATIOS table (primary 39/80; 1st 17/46; 2nd 16/33; 3rd 24/39; 4th 19/26; 5th 21/25; 6th 22/23; final 17/43), Regina 520-135-ZRA 110-link chain, kerb weight 183 kg"},{"field_group":"drivetrain","url":"https://wlassets.aprilia.com/wlassets/aprilia/master/tech_spec/2020/RS_660_EN/original/RS_660_EN.pdf","what":"Aprilia official press technical specifications: secondary drive 'Chain, with drive ratio: 17/43', 6 gears with AQS, max power/torque"},{"field_group":"drivetrain","url":"https://www.apworkshops.co.uk/the-technical-zone/final-drive-ratio-data/rs-660-tuono-660/","what":"Secondary corroboration of stock final drive 17/43"},{"field_group":"engine","url":"https://storeusa.aprilia.com/files/technical/EN-Aprilia-RS660.pdf","what":"Aprilia USA official 2021 RS 660 spec sheet: 100 HP (73.5 kW) @ 10,500 rpm; 49.4 ft-lbs @ 8,500 rpm; rear tire 180/55 ZR17 (alt 180/60 ZR17); kerb weight 403 lbs"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2021-aprilia-rs-660-track-review","what":"Rev limiter: 'maintains that thrust all the way to the 11,500-rpm rev limiter'"},{"field_group":"engine","url":"https://www.motorcycle.com/bikes/manufacturer/aprilia/2026-aprilia-rs-660-factory-review-44659906","what":"Corroborates 11,500 rpm baseline limiter: 2026 Factory tune 'bumps the rev limiter up 300 rpm to 11,800'"},{"field_group":"chassis","url":"https://www.motorcyclespecs.co.za/model/aprilia/aprilia-rs660-21.html","what":"Secondary corroboration: 100 hp @ 10,500; 67.0 Nm @ 8,500; final drive 17/43; 180/55 ZR17; wet weight 183 kg / dry 169 kg"},{"field_group":"engine","url":"https://www.cyclenews.com/2020/11/article/2021-aprilia-rs-660-review/","what":"Verifier-added third independent corroboration of redline ('two-thirds of the way to that 11,500 rpm redline'), rear tire 180/55 ZR17, claimed wet weight 403 lbs"}],"verified":{"date":"2026-07-19","method":"Independent re-derivation: downloaded and text-extracted the official Aprilia press tech-spec PDF (wlassets.aprilia.com), Aprilia USA 2021 spec sheet PDF (storeusa.aprilia.com), and the 415-page RS 660 Service Station Manual PDF; recomputed all ratios from tooth pairs; cross-checked redline against RevZilla, Motorcycle.com, and Cycle News. Every numeric field matched digit-for-digit; no corrections needed."},"retrieved":"2026-07-19"},{"slug":"aprilia-rsv4-2021","make":"Aprilia","model":"RSV4 (1100)","years":"2021-2024","category":"superbike","engine":{"redline_rpm":13600,"peak_power_hp":217,"peak_power_rpm":13000,"peak_torque_nm":125,"peak_torque_rpm":10500},"drivetrain":{"primary_ratio":1.659,"primary_teeth":"73/44","gear_ratios":[2.6,2.063,1.7,1.476,1.308,1.222],"gear_teeth":["39/15","33/16","34/20","31/21","34/26","33/27"],"stock_front":16,"stock_rear":41,"chain":"525"},"rear_tire":"200/55ZR17","wet_weight_kg":202,"notes":["Generation: 2021-2024 Euro 5 RSV4/RSV4 Factory, 1,099 cc, claimed 217 hp (159.5 kW) at crankshaft. The 2025+ update claims 220 hp @ 13,200 rpm but keeps identical gearing (primary 73/44, same six gear pairs, final 41/16).","Base RSV4 and RSV4 Factory share identical engine and drivetrain specs in 2021-2024; both official 2021 sheets state kerb weight 202 kg (90% fuel) and rear tyre 200/55 ZR 17 (alternatives: 190/50 ZR 17, 190/55 ZR 17).","Redline: owner's manual for the 1,099 cc RSV4 1100 states 'Engine revs at maximum speed: 13600 +/- 100 rpm' (technical data, p.195).","Gear ratios published by Aprilia as tooth pairs (driven/driving); ratios here computed from teeth to 3 decimals. Aprilia's own printed decimals truncate rather than round: 5th is printed 1.307 (34/26 = 1.3077 -> 1.308) and secondary drive 2.562 (41/16 = 2.5625). 2nd gear 33/16 = 2.0625 -> 2.063.","Chain pitch (525) is not stated on Aprilia's spec sheet; verified via multiple OEM-replacement fitment catalogs (Sprocket Center, DID kit listing for RSV4 1100 2019-2024, WSC 525-pitch sprockets for RSV4/Tuono V4).","Gear tooth pairs verified in two manufacturer documents: 2021+ RSV4 1100 owner's manual (1,099 cc, p.196) and RSV4 1100 Factory service station manual 2Q000401 (lists identical pairs), and match Aprilia's published 2025/26 RSV4 1100 spec (39/15, 33/16, 34/20, 31/21, 34/26, 33/27).","Peak power/torque are manufacturer claims at the crankshaft: 217 HP (159.5 kW) @ 13,000 rpm; 125 Nm @ 10,500 rpm."],"sources":[{"field_group":"engine","url":"https://wlassets.aprilia.com/wlassets/aprilia/gb/tech_spec/2021/RSV4/original/RSV4.pdf","what":"Official Aprilia 2021 RSV4 (base) technical specifications PDF: 1,099 cc; 217 HP (159.5 kW) @ 13,000 rpm; 125 Nm @ 10,500 rpm; primary 73/44 (1.659); secondary chain 41/16 (2.562); kerb 202 kg (90% fuel); rear 200/55 ZR 17."},{"field_group":"engine","url":"https://wlassets.aprilia.com/wlassets/aprilia/gb/tech_spec/2021/RSV4-Factory/original/RSV4+Factory.pdf","what":"Official Aprilia 2021 RSV4 Factory technical specifications PDF: identical engine/drivetrain figures; confirms 202 kg kerb and 200/55 ZR 17 rear for Factory."},{"field_group":"engine","url":"https://www.manualslib.com/manual/2591745/Aprilia-Rsv4-1100.html?page=195","what":"Aprilia RSV4 1100 (1,099 cc) owner's manual technical data: 'Engine revs at maximum speed: 13600 +/- 100 rpm' (redline); p.194 confirms 1099 cc, 81 x 53.32 mm, 13.6:1, kerb 202 kg."},{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/2591745/Aprilia-Rsv4-1100.html?page=196","what":"Aprilia RSV4 1100 (1,099 cc) owner's manual gear ratios: primary 44/73; 1st 15/39, 2nd 16/33, 3rd 20/34, 4th 21/31, 5th 26/34, 6th 27/33."},{"field_group":"drivetrain","url":"https://cdn.webshopapp.com/shops/233369/files/369289182/aprilia-rsv4-1100-factory-service-station-manual-2.pdf","what":"Aprilia RSV4 1100 Factory service station manual 2Q000401 (p.12, CHAR): primary 44/73; gears 15/39, 16/33, 20/34, 21/31, 26/34, 27/33; final drive 16/41 (corroboration; RSV4 1100 gearbox carried over)."},{"field_group":"drivetrain","url":"https://seacoastsport.com/products/2025-aprilia-rsv4-1100","what":"Aprilia RSV4 1100 dealer reprint of official specs: gear ratios 39/15 (2.600), 33/16 (2.063), 34/20 (1.700), 31/21 (1.476), 34/26 (1.307), 33/27 (1.222); primary 73/44 (1.659); secondary 41/16 (2.562) \u2014 identical gearing on the 2025/26 model."},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392611-street-aprilia-1100-rsv4-rf-rr-models-2019-2024.html","what":"Sprocket Center fitment for Aprilia 1100 RSV4 2019-2024: 525-pitch chain and sprocket kits (chain size corroboration #1)."},{"field_group":"drivetrain","url":"https://www.kitdecadena.com/en/products/did-chain-sprocket-kits/sprocket-kit-did-aprilia/rsv4-1100-rr/aprilia-rsv4-1100-rr-19-20-standard-chain-kit","what":"DID standard chain kit listing for RSV4 1100 2019-2024: DID 525 VX3 (chain size corroboration #2)."},{"field_group":"chassis","url":"https://www.motorcyclespecs.co.za/model/aprilia/aprilia-rsv-4-1100-21.html","what":"Secondary corroboration for 2021 RSV4 1100: 217 hp @ 13,000 rpm, 125 Nm @ 10,500 rpm, primary 73/44, secondary 41/16, wet weight 202 kg, rear 200/55 ZR 17."}],"retrieved":"2026-07-19"},{"slug":"aprilia-tuono-660-2021","make":"Aprilia","model":"Tuono 660","years":"2021-2024","category":"naked","engine":{"redline_rpm":11500,"peak_power_hp":95,"peak_power_rpm":10500,"peak_torque_nm":67.0,"peak_torque_rpm":8500},"drivetrain":{"primary_ratio":2.051,"primary_teeth":"80/39","gear_ratios":[2.706,2.063,1.625,1.368,1.19,1.045],"gear_teeth":["46/17","33/16","39/24","26/19","25/21","23/22"],"stock_front":17,"stock_rear":43,"chain":"520"},"rear_tire":"180/55ZR17","wet_weight_kg":183,"notes":["Gear/primary ratios computed to 3 decimals from tooth pairs in the official Aprilia service station manuals (RS 660 and Tuono 660 share the identical 659cc gearbox and drive-ratio table). Manuals print pairs driving/driven (e.g. primary '39/80', 1st '17/46'); recorded here driven/driving so ratio = teeth quotient. Exact values: primary 80/39=2.0513; 2nd 33/16=2.0625; 4th 26/19=1.3684; 5th 25/21=1.1905; 6th 23/22=1.0455.","Claimed power differs by market: 95 hp (70 kW) @ 10,500 rpm is the EU/global launch claim (Piaggio Group official article, bikez, MCN); Aprilia USA's official 2021 technical spec sheet claims 100 hp (74 kW) @ 10,500 rpm for the US market. Torque claim (67.0 Nm @ 8,500 rpm) is identical in both documents. Cycle World measured 86.95 hp @ 10,630 rpm at the rear wheel.","Redline: official Piaggio Group article states the rev limiter threshold is 11,500 rpm; press reviews (Ultimate Motorcycling, Bennetts) corroborate the 11,500 rpm redline. The service manual's characteristics page lists 10,500 +/- 100 rpm, but that is the max-power engine speed, not the limiter.","Chain pitch not stated on Aprilia's spec sheet; 520 pitch (stock 17/43) corroborated by multiple OEM-replacement kit listings (Sprocket Center, A Special Parts/DID).","Official spec sheet lists rear tire 180/55 ZR 17 with 180/60 ZR 17 as factory alternative fitment.","Weight is Aprilia's stated kerb weight (183 kg). Years 2021-2024 cover the original-claim generation; the MY2025+ refresh raised claimed power (e.g. 2026 Tuono 660 Factory: 105 hp @ 10,400 rpm) while vendors list final drive/chain unchanged (17/43, 520) through 2026."],"sources":[{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/2095932/Aprilia-Tuono-660-2021.html?page=18","what":"Aprilia Tuono 660 2021 Service Station Manual, DRIVE RATIOS table: primary 39/80, gears 17/46, 16/33, 24/39, 19/26, 21/25, 22/23, final 17/43"},{"field_group":"drivetrain","url":"https://cdn.webshopapp.com/shops/233369/files/369286203/aprilia-rs660.pdf","what":"Official Aprilia RS 660 Service Station Manual PDF (shared 660 engine/gearbox), page CHA-18: identical drive-ratio table; kerb weight 183 kg; idle 1400 rpm"},{"field_group":"engine","url":"https://storeusa.aprilia.com/files/technical/EN_tuono_660.pdf","what":"Official Aprilia USA Tuono 660 technical spec sheet (Feb 2021): US claim 100 hp (74 kW) @ 10,500 rpm; 67.0 Nm @ 8,500 rpm; final drive 17/43; tires 120/70 ZR 17 / 180/55 ZR 17 (alt 180/60); kerb 183 kg"},{"field_group":"engine","url":"https://wide.piaggiogroup.com/en/articles/products/aprilia-tuono-660-as-powerful-as-a-thunder-as-light-as-a-cloud/index.html","what":"Official Piaggio Group article: 95 HP @ 10,500 rpm, 67 Nm @ 8,500 rpm, rev limiter threshold 11,500 rpm"},{"field_group":"engine","url":"https://www.bikez.com/motorcycles/aprilia_tuono_660_2021.php","what":"Secondary corroboration: 95.0 HP (69.3 kW), 183 kg wet weight"},{"field_group":"engine","url":"https://www.asphaltandrubber.com/bikes/2021-aprilia-tuono-660-imu-horsepower/","what":"Press coverage documenting the US 100 hp vs EU 95 hp claim split"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392963-street-aprilia-660-tuono-2021-2026.html","what":"Stock configuration for Tuono 660 2021-2026: front 17, rear 43, 520-pitch chain, 110 links"},{"field_group":"drivetrain","url":"https://www.aspecialparts.com/shop/transmission/transmission-kit/did-chain-kit-aprilia-rs660-tuono-660-17-43/","what":"DID OEM-replacement kit for RS660/Tuono 660: 17/43, 520 pitch"},{"field_group":"chassis","url":"https://www.cycleworld.com/story/bikes/how-much-power-does-the-2021-aprilia-tuono-660-make/","what":"Cycle World in-house dyno: 86.95 hp @ 10,630 rpm, 44.95 lb-ft @ 8,860 rpm (measured, for reference)"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2025/10/07/2026-aprilia-tuono-660-factory-review-a-dozen-fast-facts/","what":"Verifier corroboration: 11,500 rpm redline (same 659cc twin); also confirms MY2025+ refresh claim of 105 hp @ 10,400 rpm cited in notes"},{"field_group":"drivetrain","url":"https://norton-motorsports.com/product/superlite-520-xd-series-chromoly-steel-front-sprockets-aprilia-rs660-tuono-660/","what":"Verifier corroboration: additional independent vendor listing 520-pitch sprockets as the RS660/Tuono 660 fitment (chain pitch not published by Aprilia)"}],"retrieved":"2026-07-19","verified":{"date":"2026-07-19","verdict":"clean","what":"Independent re-derivation: drive-ratio table (primary 39/80; 17/46, 16/33, 24/39, 19/26, 21/25, 22/23; final 17/43) re-read from Tuono 660 2021 Service Station Manual p.18; all 7 ratio decimals recomputed and matched; US spec-sheet PDF text decoded directly (100 hp/74 kW @ 10,500, 67.0 Nm @ 8,500, 17/43, 180/55 ZR 17 alt 180/60, kerb 183 kg); Piaggio Group article re-fetched (95 HP @ 10,500, 67 Nm @ 8,500, limiter 11,500, 183 kg, tires); 520 chain corroborated by 3+ independent vendors. No numeric changes required."}},{"slug":"bmw-s1000rr-2023","make":"BMW","model":"S 1000 RR","years":"2023-2025","category":"superbike","engine":{"redline_rpm":14600,"peak_power_hp":210,"peak_power_rpm":13750,"peak_torque_nm":113,"peak_torque_rpm":11000},"drivetrain":{"primary_ratio":1.652,"primary_teeth":null,"gear_ratios":[2.647,2.091,1.727,1.5,1.36,1.261],"gear_teeth":null,"stock_front":17,"stock_rear":46,"chain":"525"},"rear_tire":"190/55ZR17","wet_weight_kg":197,"notes":["Generation: 2023 facelift of the K67 S 1000 RR (introduced Sept 2022 for MY2023). MY2025 update (press release T0445681EN) added winglets and the M short-stroke throttle but stated no engine or gearing changes for the S 1000 RR, so this drivetrain data applies 2023-2025.","2023 change vs 2019-2022 K67: rear sprocket 46T instead of 45T (secondary ratio 2.706 vs 2.647); internal gearbox ratios unchanged.","Peak power is the manufacturer's global claim: 154 kW (210 hp) at 13,750 rpm (BMW global press release T0403947EN). North American BMW press material rates the same bike at 205 hp at 13,000 rpm; the global figure is recorded here.","Peak torque manufacturer claim: 113 Nm at 11,000 rpm (global); US/Canada material states 83 lb-ft (112.5 Nm) at 11,000 rpm.","BMW publishes gearbox ratios as decimals only; per-gear tooth pairs and primary-drive tooth counts are not published, so primary_teeth and gear_teeth are null.","Secondary (final drive) ratio per BMW: 2.706 = 46/17 (2.70588 rounded by BMW to 3 decimals).","wet_weight_kg 197 is BMW DIN unladen weight, road ready, fully fueled, standard trim (Race Package 195.4 kg, M Package 193.5 kg per BMW Canada press release).","Rear tire 190/55 ZR17 standard; 200/55 ZR17 when fitted with optional M carbon wheels.","Redline: BMW states maximum engine speed 14,600 rpm."],"sources":[{"field_group":"drivetrain","url":"https://www.press.bmwgroup.com/canada/article/detail/T0404176EN/the-new-2023-bmw-s-1000-rr?language=en","what":"BMW Group PressClub Canada, 'The new 2023 BMW S 1000 RR' technical annex: primary ratio 1.652; gear ratios I 2.647, II 2.091, III 1.727, IV 1.500, V 1.360, VI 1.261; secondary ratio 2.706; 46T vs 45T rear sprocket change; rear tire 190/55 ZR17; weight 197 kg DIN unladen fully fueled."},{"field_group":"drivetrain","url":"https://www.press.bmwgroup.com/usa/article/detail/T0404178EN_US/the-new-bmw-s-1000-rr","what":"BMW Group PressClub USA, 'The new BMW S 1000 RR' (MY2023) technical data: identical ratio table (primary 1.652; I-VI 2.647/2.091/1.727/1.500/1.360/1.261; secondary 2.706); max engine speed 14,600 rpm; chain final drive; 190/55 ZR17 rear."},{"field_group":"drivetrain","url":"https://www.webbikeworld.com/2023-bmw-s-1000-rr/","what":"Press-kit spec reprint: final drive 'Chain 525 17/46' (chain size and stock sprockets), corroborating source 1."},{"field_group":"drivetrain","url":"https://www.motorcyclespecs.co.za/model/bmw/bmw-s1000rr-23.html","what":"Secondary corroboration: 'Chain 525 17/46', max engine speed 14,600 rpm, rear tire 190/55 ZR17 (200/55 ZR17 with M wheels)."},{"field_group":"engine","url":"https://www.press.bmwgroup.com/global/article/detail/T0403947EN/the-new-bmw-s-1000-rr?language=en","what":"BMW global press release (MY2023): 154 kW (210 hp) at 13,750 rpm; 113 Nm at 11,000 rpm; maximum engine speed 14,600 rpm."},{"field_group":"engine","url":"https://www.press.bmwgroup.com/canada/article/detail/T0404176EN/the-new-2023-bmw-s-1000-rr?language=en","what":"North American rating recorded in notes: 205 hp at 13,000 rpm, 83 lb-ft at 11,000 rpm, max engine speed 14,600 rpm."},{"field_group":"chassis","url":"https://www.press.bmwgroup.com/canada/article/detail/T0404176EN/the-new-2023-bmw-s-1000-rr?language=en","what":"DIN unladen weight fully fueled: 197 kg standard (195.4 kg Race Package, 193.5 kg M Package); rear tire 190/55 ZR17."},{"field_group":"engine","url":"https://www.ultimatespecs.com/motorcycles-specs/bmw/bmw-s-1000-rr-2023","what":"Secondary corroboration: redline 14,600 rpm; 112.6 Nm @ 11,000 rpm; curb weight 196.9 kg."},{"field_group":"drivetrain","url":"https://www.press.bmwgroup.com/global/article/detail/T0445681EN/bmw-motorrad-presents-the-new-bmw-m-1000-rr-bmw-s-1000-rr-bmw-m-1000-r-and-bmw-s-1000-r?language=en","what":"MY2025 update press release: S 1000 RR gains winglets and M short-stroke throttle only; no engine/gearing changes stated, supporting years 2023-2025 for this drivetrain spec."}],"retrieved":"2026-07-19"},{"slug":"ducati-panigale-v2-2020","make":"Ducati","model":"Panigale V2","years":"2020-2024","category":"twin","engine":{"redline_rpm":11500,"peak_power_hp":155,"peak_power_rpm":10750,"peak_torque_nm":104,"peak_torque_rpm":9000,"redline_estimated":true},"drivetrain":{"primary_ratio":1.77,"primary_teeth":null,"gear_ratios":[2.467,1.875,1.5,1.25,1.091,0.958],"gear_teeth":["37/15","30/16","27/18","25/20","24/22","23/24"],"stock_front":15,"stock_rear":43,"chain":"520"},"rear_tire":"180/60ZR17","wet_weight_kg":200,"notes":["Generation: 2020-2024 Panigale V2 with 955 cc Superquadro 90-deg V-twin (Euro 5). The 2025+ Panigale V2 is an all-new 890 cc engine with different gearing - do not mix generations.","Gear ratios computed to 3 decimals from Ducati-published tooth pairs (e.g. 1st 37/15 = 2.467); tooth pairs are as printed in Ducati press-kit spec reprints.","Primary drive published by Ducati only as 'Straight cut gears, ratio 1.77:1'; tooth pair not published, so primary_teeth is null.","Chain: 520 pitch, 106 links, stock sprockets 15/43 (final drive 2.867, matches Motorcycle.com's listed 2.87), corroborated by Sprocket Center stock-size listing and DID replacement-kit fitments (520 pitch, 106 links, 15/43). OE chain brand not manufacturer-published; retailer reports name an RK 520 ZXW (a 'Regina 520 ZRDK' claim traces to the 959 Panigale, not the V2), so no OE brand is asserted. Bikez/UltimateSpecs shared-feed entry 'Chain 525, rear sprocket 39' contradicts all other sources and was rejected as a database error.","redline_rpm set null: ~11,500 rpm rev limiter is reported by MotoStatz and owner forums but is not manufacturer-published and lacked a second independent secondary source.","Peak power/torque are manufacturer claims: 114 kW / 155 hp @ 10,750 rpm and 104 Nm / 76.7 lb-ft @ 9,000 rpm.","Weight: 200 kg (441 lb) kerb/wet per Ducati claim (90% fuel convention); dry weight 176 kg (388 lb).","Rear tyre OE fitment: Pirelli Diablo Rosso Corsa II 180/60 ZR17 (note 60-profile, not 55).","Redline is not published by the manufacturer; the chart ceiling is an estimate (claimed power peak + 8%)."],"sources":[{"field_group":"drivetrain","url":"https://www.motorcyclespecs.co.za/model/ducati/Ducati_v2_20.html","what":"Press-kit spec reprint: primary drive straight cut gears 1.77:1; gear tooth pairs 37/15, 30/16, 27/18, 25/20, 24/22, 23/24; front sprocket 15, rear sprocket 43"},{"field_group":"drivetrain","url":"https://www.moto-data.net/ducati/panigale-v2-2020","what":"Independent spec DB corroborating primary 1.77:1, identical six gear tooth pairs, and 15/43 final drive"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392945-street-ducati-v2-panigale-2020-2024.html","what":"Specialist retailer 'STOCK SIZES' for V2 Panigale 955 2020-2024: front 15, rear 43, chain 106 links / 520 pitch"},{"field_group":"drivetrain","url":"https://www.motorcycle.com/specs/ducati/sport/2020/panigale/v2/detail.html","what":"Final drive ratio 2.87 (= 43/15), 6 speeds; corroborates sprocket pairing"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/ducati/Ducati_v2_20.html","what":"Claimed 114 kW / 155 hp @ 10,750 rpm; 104 Nm / 76.7 lb-ft @ 9,000 rpm"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2019/10/23/2020-ducati-panigale-v2-first-look-11-fast-facts/","what":"Press-kit reprint: 155 hp @ 10,750 rpm, 77 ft-lb @ 9,000 rpm"},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/ducati/sport/2020/panigale/v2/detail.html","what":"Wet weight 441 lb / 200 kg (dry 388 lb / 176 kg); rear tire Pirelli Diablo Rosso Corsa II 180/60 ZR17"},{"field_group":"chassis","url":"https://www.webbikeworld.com/2020-ducati-panigale-v2-model-overview/","what":"Corroborates 180/60 ZR17 rear tyre, 176 kg dry, final drive front 15 / rear 43"},{"field_group":"drivetrain,engine,chassis","url":"https://www.totalmotorcycle.com/motorcycles/2020/2020-ducati-panigale-v2","what":"Verifier (2026-07-19): third independent press-kit reprint. Primary 'Straight cut gears; Ratio 1.77:1'; gears 1=37/15 2=30/16 3=27/18 4=25/20 5=24/22 6=23/24; front 15 / rear 43; 114 kW (155 hp) @ 10,750 rpm; 104 Nm (76.7 lb-ft) @ 9,000 rpm; Pirelli Diablo Rosso Corsa II 180/60 ZR17; dry 176 kg; kerb 200 kg"},{"field_group":"drivetrain","url":"https://www.carpimoto.com/en-SE/Bike_Ducati_Panigale-V2/Specific/Brand_DID/Drive-Transmission/Chain-Sprocket-Kit/37376_DU-PNGV2-DID-520ZVM-X-Chain-15.htm","what":"Verifier (2026-07-19): DID DU-PNGV2 replacement kit for Panigale V2 = 520-pitch chain with 15/43 sprockets, corroborating 520 pitch and stock sprocket sizes independently of Sprocket Center"}],"retrieved":"2026-07-19","verified":{"date":"2026-07-19","result":"All numeric fields re-derived independently. Primary 1.77:1, all six tooth pairs (37/15, 30/16, 27/18, 25/20, 24/22, 23/24) and their 3-decimal ratios (2.467, 1.875, 1.500, 1.250, 1.091, 0.958 - arithmetic re-checked), sprockets 15/43, chain 520, 155 hp @ 10,750 rpm, 104 Nm @ 9,000 rpm, 180/60 ZR17, 200 kg kerb / 176 kg dry all match three independent Ducati press-kit reprints (motorcyclespecs.co.za, moto-data.net, totalmotorcycle.com) plus specialist retailer fitment data. Ducati.com blocks direct fetch (HTTP 403); redline correctly remains null (not manufacturer-published). One note corrected: OE chain brand claim (Regina 520 ZRDK) was uncorroborated for the V2 and removed."}},{"slug":"ducati-panigale-v4-2022","make":"Ducati","model":"Panigale V4","years":"2022-2024","category":"superbike","engine":{"redline_rpm":14000,"peak_power_hp":215.5,"peak_power_rpm":13000,"peak_torque_nm":123.6,"peak_torque_rpm":9500,"redline_estimated":true},"drivetrain":{"primary_ratio":1.8,"primary_teeth":null,"gear_ratios":[2.4,2.0,1.737,1.524,1.364,1.227],"gear_teeth":["36/15","34/17","33/19","32/21","30/22","27/22"],"stock_front":16,"stock_rear":41,"chain":"525"},"rear_tire":"200/60ZR17","wet_weight_kg":198.5,"notes":["Gearbox tooth pairs are from the official Ducati Panigale V4 MY2022 brochure (Dec 2021) spec table: 1=36/15 2=34/17 3=33/19 4=32/21 5=30/22 6=27/22. Ratios computed from teeth to 3 decimals.","MY2022 introduced the 'SBK' gearbox: 1st lengthened 11.6%, 2nd 5.6%, 6th 1.8% vs MY2018-2021. Some secondary databases (e.g. moto-data.net) incorrectly list the pre-2022 gearbox on their 2022 page (1=38/14 ... 6=30/24) \u2014 rejected in favor of the manufacturer spec sheet.","Peak power 215.5 hp is Ducati's metric-hp claim (158.5 kW) at 13,000 rpm, Euro 5 spec; brochure footnote: max power @ 12,500 rpm for US market only (US rating commonly listed as 210 hp @ 12,500 rpm, 122.8 Nm @ 11,000 rpm).","redline_rpm set null: Ducati does not publish a redline in the spec sheet. Brochure text references output at 14,500 rpm; owner/forum reports describe a gear-dependent limiter (~14,000 rpm 1st, ~14,500 rpm gears 2-5, ~15,000 rpm 6th) but no manufacturer or reputable press source states it, so it is not recorded as verified.","primary_teeth set null: brochure states 'Straight cut gears; ratio 1.80:1' without tooth counts.","wet_weight_kg 198.5 is base Panigale V4 kerb weight in running order (all fluids, 100% fuel per EU Reg 168/2013); Panigale V4 S is 195.5 kg. Dry weights: 175 kg (V4) / 174 kg (V4 S).","Generation years: MY2022 updates carried through MY2023-2024; the MY2025 Panigale V4 is a new generation (revised engine/chassis) \u2014 verify separately before extending years.","Redline is not published by the manufacturer; the chart ceiling is an estimate (claimed power peak + 8%)."],"sources":[{"field_group":"drivetrain","url":"https://assets.ctfassets.net/x7j9qwvpvr5s/s0TdDDThmTz7TFJLkI5Ss/853639085b4542dbc6f4b7c0cbce2dcc/Panigale_V4_MY_2022_Brochure_ENG.pdf","what":"Official Ducati Panigale V4 MY2022 brochure (Dec 2021), Technical data page: primary drive straight cut gears ratio 1.80:1; gear teeth 36/15, 34/17, 33/19, 32/21, 30/22, 27/22; final drive chain 525, front sprocket 16, rear sprocket 41"},{"field_group":"engine","url":"https://assets.ctfassets.net/x7j9qwvpvr5s/s0TdDDThmTz7TFJLkI5Ss/853639085b4542dbc6f4b7c0cbce2dcc/Panigale_V4_MY_2022_Brochure_ENG.pdf","what":"Official Ducati MY2022 brochure: 1,103 cc Desmosedici Stradale; 158.5 kW (215.5 hp) @ 13,000 rpm; 123.6 Nm (91.2 lb-ft) @ 9,500 rpm; footnote 'Max power @ 12,500 rpm for US market only'"},{"field_group":"chassis","url":"https://assets.ctfassets.net/x7j9qwvpvr5s/s0TdDDThmTz7TFJLkI5Ss/853639085b4542dbc6f4b7c0cbce2dcc/Panigale_V4_MY_2022_Brochure_ENG.pdf","what":"Official Ducati MY2022 brochure: rear tyre Pirelli Diablo Supercorsa SP 200/60 ZR17; dry weight 175 kg; weight in running order (kerb) 198.5 kg; V4 S comparison table 174 kg / 195.5 kg"},{"field_group":"drivetrain","url":"https://www.webbikeworld.com/2022-ducati-panigale-v4/","what":"Secondary corroboration: final drive 'Chain 525; Front sprocket 16; Rear sprocket 41'; 6-speed with DQS up/down EVO 2; rear tire 200/60 ZR17; dry weight 175 kg (386 lb)"},{"field_group":"engine","url":"https://www.moto-data.net/ducati/panigale-v4-2022","what":"Secondary corroboration of engine claims (215.5 hp @ 13,000 rpm Euro 5 / 210 hp @ 12,500 rpm US; 123.6 Nm @ 9,500 rpm), primary 1.80:1, chain 525, 16/41 sprockets, kerb 198.5 kg. NOTE: this page's per-gear tooth list is the pre-2022 gearbox and was rejected."},{"field_group":"drivetrain","url":"https://ultimatemotorcycling.com/2021/11/29/2022-ducati-panigale-v4-lineup-first-look-22-fast-facts-photos/","what":"Press coverage corroborating MY2022 gearbox changes (1st +11.6%, 2nd +5.6%, 6th +1.8%), 525 chain, curb weight 438 lb (V4 S 431 lb)"},{"field_group":"verification","url":"https://paultan.org/2021/11/26/2022-ducati-panigale-v4-debuts-215-5-hp-revised-gearing-updates-for-improved-on-track-performance/","what":"Independent verification pass 2026-07-19: press-kit reprint corroborating 215.5 hp @ 13,000 rpm / 123.6 Nm @ 9,500 rpm, SBK gearbox changes (1st +11.6%, 2nd +5.6%, 6th +1.8%), kerb 198.5 kg (V4 S 195.5 kg), rear tire 200/60. Brochure PDF re-fetched and text-extracted directly; spec table matches all stored values verbatim (ratios 1=36/15 2=34/17 3=33/19 4=32/21 5=30/22 6=27/22; primary 1.80:1; chain 525 16/41). Percentage changes recomputed from old (38/14, 36/17, 30/24) vs new teeth reproduce 11.6/5.6/1.8% exactly."}],"retrieved":"2026-07-19"},{"slug":"honda-cbr1000rr-r-2020","make":"Honda","model":"CBR1000RR-R Fireblade SP","years":"2020-2021","category":"superbike","engine":{"redline_rpm":14500,"peak_power_hp":214.6,"peak_power_rpm":14500,"peak_torque_nm":113,"peak_torque_rpm":12500},"drivetrain":{"primary_ratio":1.63,"primary_teeth":null,"gear_ratios":[2.615,2.058,1.7,1.478,1.333,1.214],"gear_teeth":null,"stock_front":16,"stock_rear":40,"chain":"525"},"rear_tire":"200/55ZR17","wet_weight_kg":201,"notes":["Generation scoped to 2020-2021 (SC82 pre-update). The MY2022 update raised the rear sprocket from 40T to 43T (final reduction 2.500 -> 2.688) and compression from 13.2:1 to 13.4:1; internal gear ratios and 1.630 primary were unchanged through 2023. Do not use this record for 2022+.","Gear ratios and primary/final reduction are from the official Honda owner's manuals: 2020 CBR1000RR-R (pub 32MKR8010, printed Nov 2019) and 2021 CBR1000RR-R Fireblade SP (pub 32MKR600, printed Apr 2020), both listing Gear ratio 1st 2.615 / 2nd 2.058 / 3rd 1.700 / 4th 1.478 / 5th 1.333 / 6th 1.214 and 'Reduction ratio (primary / final) 1.630 / 2.500'. Manuals publish decimals only, so primary_teeth and gear_teeth are null (tooth pairs appear only in the service manual, not verified here).","Stock sprockets 16/40 are printed explicitly in the 2020 owner's manual maintenance specifications ('Drive sprocket 16T / Driven sprocket 40T', drive chain DID525HV3KAI or RK525ROZ8, 118 links) -- not merely derived from the 2.500 final reduction -- and corroborated by Sprocket Center's OEM fitment listing for 2020-2021 US models (16F/40R, 525 pitch, 118 links) and by press coverage of the 2022 update ('up three teeth on the rear sprocket, which is now 43').","Conflict flagged: American Honda's hondanews.com MY2021 spec sheet lists 'Final Drive 16T/43T; #525 chain', which contradicts the 2020/2021 owner's manuals (final 2.500 = 16/40) and Sprocket Center's 2020-2021 OEM data; the US page appears to have been revised to post-2022 spec. 16/40 retained here.","Power/torque are manufacturer claims: 160 kW @ 14,500 rpm (= 214.6 hp / 217.5 PS) and 113 Nm @ 12,500 rpm per Honda EU press material; peak_power_hp is the kW conversion. Some US-market summaries quote 214-215 hp.","Redline: Honda-stated 14,500 rpm rev limiter (as reported by MCN, 'Honda says the new short-stroke motor has a 14,500rpm limiter'), coinciding with the official peak-power rpm; the owner's manual does not print a redline figure.","Wet weight is Honda's kerb figure for the SP: 201 kg (443 lb), fully fuelled; also printed as 'Curb weight 201 kg' in both owner's manuals.","gearingcommander.com was not consulted, per licensing rules.","Independently re-verified 2026-07-19: gear ratios, 1.630/2.500 reductions, 16T/40T sprockets, 118-link 525 chain, 200/55ZR17M/C (78W) rear tyre, 201 kg curb weight, and 13.2:1 compression were all read digit-by-digit from the specifications pages of the official 2020 owner's manual PDF (hondamotopub.com; internal footer pub code 32MKR8000_eng). Engine claims (160 kW @ 14,500 / 113 Nm @ 12,500, 201 kg kerb, 200/55-ZR17) re-confirmed on Honda EU's official 2020 Fireblade SP press release. Sprocket Center 16/40 fitment and MCN's 40->43 2022-change reporting re-confirmed. Minor variance logged: bikereview.com.au describes 'the Honda's 14,600rpm redline'; Honda-attributed 14,500 rpm limiter (MCN) retained as it coincides with the official peak-power rpm."],"sources":[{"field_group":"drivetrain","url":"https://2rom-prd-data.hondamotopub.com/om/HPI/CBR1000RR-R/2020/CBR1000RR-R_32MKR8010_0.pdf","what":"Official Honda 2020 CBR1000RR-R owner's manual (URL pub 32MKR8010; internal footer 32MKR8000_eng), Specifications: gear ratios 2.615/2.058/1.700/1.478/1.333/1.214, reduction ratio primary/final 1.630/2.500, curb weight 201 kg (443 lb), compression 13.2:1; maintenance specs additionally print drive sprocket 16T, driven sprocket 40T, chain DID525HV3KAI or RK525ROZ8, 118 links, rear tyre 200/55ZR17M/C (78W). Verifier extracted these pages from the PDF directly on 2026-07-19."},{"field_group":"drivetrain","url":"https://2rom-prd-data.hondamotopub.com/om/BSH/CBR1000RR-R%20Fireblade%20SP/2021/CBR1000ST%2CSP_32MKR600_0.pdf","what":"Official Honda 2021 CBR1000RR-R Fireblade SP owner's manual (32MKR600): identical gear ratios and 1.630/2.500 reduction, confirming 2021 carryover"},{"field_group":"engine","url":"https://hondanews.eu/gb/en/motorcycles/media/pressreleases/196428/2020-honda-cbr1000rr-r-fireblade-sp","what":"Honda EU official 2020 Fireblade SP press release: Max power 160 kW @ 14,500 rpm; max torque 113 Nm @ 12,500 rpm; kerb weight 201 kg; rear tyre 200/55-ZR17; 6-speed"},{"field_group":"drivetrain","url":"https://hondanews.com/en-US/releases/release-47ef5ef525f391ae783334075a03521c-2021-honda-cbr1000rr-r-fireblade-sp-specifications","what":"American Honda MY2021 spec sheet: '#525 chain' (chain size); page lists 16T/43T final drive which conflicts with 2020-21 owner's manual 2.500 final -- see notes"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392881-CBR-1000RR-R-2020-2021.html","what":"Sprocket Center OEM fitment for CBR1000RR-R SP 2020-2021 US: front 16, rear 40, 118-link 525 chain"},{"field_group":"drivetrain","url":"https://44teeth.com/2022-honda-cbr1000rr-r-fireblade-sp/","what":"2022-model coverage: 'gone up three teeth on the rear sprocket, which is now 43' -- confirms 2020-21 rear was 40T; 214 bhp @ 14,500 rpm claim"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/honda/cbr1000rr-r-fireblade-sp/2020/","what":"MCN 2020 review: Honda-stated 14,500 rpm limiter; 214 bhp @ 14,500 rpm; 83 lb-ft @ 12,500 rpm; 201 kg kerb; notes 2022 sprocket change 40->43"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/Honda/honda_cbr1000rr-r-sp_20.html","what":"Secondary corroboration: 215 hp / 160 kW @ 14,500; 113 Nm @ 12,500; 201 kg wet; 200/55ZR17; #525 chain"},{"field_group":"chassis","url":"https://bikez.com/motorcycles/honda_cbr1000rr-r_fireblade_sp_2020.php","what":"Secondary corroboration: 214.6 hp (156.6 kW) @ 14,500 rpm; 113 Nm @ 12,500 rpm; wet weight 201.3 kg incl. fluids; 200/55-ZR17"},{"field_group":"engine","url":"https://bikereview.com.au/review-road-test-honda-2020-cbr1000rr-r-fireblade-sp/","what":"Verifier-added, redline variance record: Bike Review (AU) road test describes 'the Honda's 14,600rpm redline'; sole outlier vs the Honda-attributed 14,500 rpm limiter"}],"retrieved":"2026-07-19"},{"slug":"honda-cbr600rr-2021","make":"Honda","model":"CBR600RR","years":"2021-2023","category":"supersport-600","engine":{"redline_rpm":15000,"peak_power_hp":119.3,"peak_power_rpm":14000,"peak_torque_nm":64,"peak_torque_rpm":11500},"drivetrain":{"primary_ratio":2.111,"primary_teeth":null,"gear_ratios":[2.615,2.0,1.666,1.444,1.304,1.208],"gear_teeth":["34/13","32/16","30/18","26/18","30/23","29/24"],"stock_front":16,"stock_rear":41,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":194,"notes":["Generation: Japan-market new-generation CBR600RR, type 2BL-PC40, launched 2020-09-25 as the 2021 model; sold in Japan/Asia/Australia 2021-2023. NOT the US-market 2021 CBR600RR, which is the older 2013-generation with different gearing (1st gear 2.750).","Gear ratios as published by Honda (JP press release / factbook): 2.615 / 2.000 / 1.666 / 1.444 / 1.304 / 1.208; primary 2.111; final (secondary) reduction 2.562 = 41/16.","Gear tooth pairs taken from the official Honda parts list PC40-170 (2021 JP): mainshaft 13T pinion (23211-MKZ-J00), countershaft 1st 34T (23421-MKZ-J00), 2nd 32/16, mainshaft 3rd&4th combined 18T/18T (23451-MFJ-D00) with countershaft 3rd 30T / 4th 26T, 5th 30/23, 6th 29/24. Computed ratios (34/13=2.615, 32/16=2.000, 30/18=1.667, 26/18=1.444, 30/23=1.304, 29/24=1.208) match Honda's published ratios.","primary_teeth set null: Honda publishes only the primary ratio (2.111) for this generation; the tooth pair is not stated in the sources consulted (76/36 is widely cited for the previous generation but was not verified for this one).","Stock final drive: 16T front (23801-MEE-D00) / 41T rear (41201-MFJ-D00), DID525HV3 chain, standard 112 links (parts list). 2024+ update (8BL-PC40 JP / EU 24YM 'MKZ') keeps the same gearbox and primary but moves to a 42T rear (final 2.625, per Honda EU owner's manual and Honda EU press release).","Engine claim (manufacturer): 89 kW [121 PS] @ 14,000 rpm, 64 Nm [6.5 kgf-m] @ 11,500 rpm (2BL-PC40). peak_power_hp 119.3 is the imperial-hp conversion of the claimed 89 kW / 121 PS. The 2024+ model is rated 89 kW [121 PS] @ 14,250 rpm and 63 Nm @ 11,500 rpm.","Redline: tachometer red zone begins at 15,000 rpm (race ECU extends to 16,500 rpm) - from two independent secondary sources (Young Machine on the 2021 JP model; Visordown on the same-generation 2024 EU model). Not an official spec-sheet figure.","wet_weight_kg 194 is Honda's claimed curb weight (soubi juryo) for the 2021 JP model; the 2024+ model is 193 kg.","VERIFIED 2026-07-19 (independent re-derivation): all ratios/teeth/sprockets/chain re-confirmed from the Honda JP press release, parts list PC40-170 (E-17: 13T mainshaft, C1 34T, M2 16T/C2 32T, M3&4 18T/18T, C3 30T, C4 26T, M5 23T/C5 30T, M6 24T/C6 29T; drive 16T 23801-MEE-D00, driven 41T 41201-MFJ-D00; DID525HV3-120ZB with standard 112 links), and Honda EU 24YM owner's manual; redline re-confirmed via Young Machine and Visordown; engine/weight/tire re-confirmed from the press release. No corrections needed. Factbook P31.pdf exists but its embedded fonts defeat text extraction; not needed given the press release."],"sources":[{"field_group":"drivetrain","url":"https://global.honda/jp/news/2020/2200821-cbr600rr.html","what":"Honda Japan press release 2020-08-21 (2BL-PC40): gear ratios 2.615/2.000/1.666/1.444/1.304/1.208, primary 2.111, secondary 2.562, 89kW[121PS]@14,000rpm, 64Nm@11,500rpm, 194 kg curb, 120/70ZR17 & 180/55ZR17 tires, 18 L fuel, on sale 2020-09-25"},{"field_group":"drivetrain","url":"https://www.honda.co.jp/factbook/motor/cbr600rr/202008/P31.pdf","what":"Honda Japan factbook Aug 2020 main-specifications sheet: same gear ratios, primary 2.111, secondary 2.562 (corroborates press release)"},{"field_group":"drivetrain","url":"http://www.battle.co.jp/partslist/honda/cbr600rr/21CBR600RR.pdf","what":"Official Honda parts list PC40-170 (2021 CBR600RR JP): mainshaft 13T, countershaft 1st 34T, 2nd 16T/32T, M3&4 18T/18T, C3 30T, C4 26T, 5th 23T/30T, 6th 24T/29T; drive sprocket 16T, final driven sprocket 41T, drive chain DID525HV3, standard 112 links"},{"field_group":"drivetrain","url":"https://webom.hondamotopub.com/webom/HMEE/MKZ240/html/GSP002001.html","what":"Honda Europe official owner's manual (same-generation 24YM model): identical gear ratios 2.615/2.000/1.666/1.444/1.304/1.208 and primary 2.111; final 2.625 with 16T/42T and DID525HV3 112 links - corroborates ratios and documents the 2024 sprocket change"},{"field_group":"engine","url":"https://www.mcnews.com.au/2021-honda-cbr600rr-specifications/","what":"Press-kit reprint (AU): 89 kW @ 14,000 rpm, 64 Nm @ 11,500 rpm, 194 kg curb, 18 L, 120/70-17 / 180/55-17 (secondary corroboration of engine/chassis claims)"},{"field_group":"engine","url":"https://young-machine.com/2020/10/14/135625/","what":"Young Machine engine deep-dive on the 2021 JP model: red zone starts at 15,000 rpm (unchanged), race ECU allows up to 16,500 rpm; peak power at 14,000 rpm"},{"field_group":"engine","url":"https://www.visordown.com/reviews/motorbike/2024-honda-cbr600rr-review","what":"Review of the same-generation 24YM EU model: '15,000rpm redline'; 89 kW @ 14,250 rpm, 63 Nm @ 11,500 rpm (second independent redline source)"},{"field_group":"chassis","url":"https://www.honda.co.jp/CBR600RR/spec/","what":"Honda Japan current spec page (8BL-PC40, 2024+): 89kW[121PS]@14,250rpm, 63Nm@11,500rpm, 193 kg, 18 L - documents the 2024+ differences noted"},{"field_group":"chassis","url":"https://www.motorcyclespecs.co.za/model/Honda/honda-cbr600rr-2024.html","what":"Secondary corroboration (same generation, 2024 EU): #525 O-ring chain, 180/55 ZR17 rear, 193 kg wet"}],"retrieved":"2026-07-19"},{"slug":"ktm-390-duke-2024","make":"KTM","model":"390 Duke","years":"2024-2026","category":"small","engine":{"redline_rpm":10000,"peak_power_hp":44.3,"peak_power_rpm":8500,"peak_torque_nm":39,"peak_torque_rpm":7000},"drivetrain":{"primary_ratio":2.606,"primary_teeth":"86/33","gear_ratios":[2.667,1.857,1.421,1.143,0.957,0.84],"gear_teeth":["32/12","26/14","27/19","24/21","22/23","21/25"],"stock_front":15,"stock_rear":45,"chain":"520"},"rear_tire":"150/60ZR17","wet_weight_kg":null,"notes":["Generation: 3rd-gen 390 Duke, all-new for MY2024 with 398.7 cc LC4c single (replaces 373 cc gen; current as of 2026-07). Gearing per MY2024 official owner's manual, art. no. 3214960en.","All drivetrain data from the official KTM 2024 390 Duke owner's manual Technical Specifications: primary transmission printed as 33:86, gears printed drive:driven (1st 12:32, 2nd 14:26, 3rd 19:27, 4th 21:24, 5th 23:22, 6th 25:21), secondary ratio 15:45, chain 5/8 x 1/4\" (520) X-ring. Ratios computed from teeth to 3 decimals (driven/driving); primary 86/33 = 2.606.","Peak power: KTM claims 33 kW (44.3 hp; some US press materials round to 45 hp) at 8,500 rpm. The 44 hp @ 9,500 rpm / 39 Nm @ 7,250 rpm figures seen in some databases are previous-gen (373 cc) values; press coverage confirms the LC4c peaks ~1,000 rpm earlier (power) and 250 rpm earlier (torque).","Torque 39 Nm is the official KTM spec-page figure; 7,000 rpm peak corroborated by motorcyclespecs.co.za, Rider Magazine, and Ultimate Motorcycling spec tables.","Redline 10,000 rpm: not an explicitly published KTM figure. Basis: Rider Magazine first-ride states 10,000 rpm redline, press reviews cite a 10,000 rpm limiter, and the official manual's shift-warning light is configurable only up to exactly 10,000 rpm.","wet_weight_kg null: KTM publishes only dry weight 149 kg (manual) and 165 kg without fuel (ktm.com). No official wet figure; with the 15 L tank full, curb weight computes to roughly 176 kg. Press outlets quoting 363-364 lb 'wet/curb' are mislabeling the 165 kg without-fuel figure.","Discrepancy flagged: motorcyclespecs.co.za lists final drive 14:43 and motorcycle.com lists 'final drive ratio 2.67' - both contradict the official manual's 15:45 (3.000); official manual value used. (2.606 is the primary ratio, likely the source of motorcycle.com's 2.67.)","Rear tire (official manual): 150/60 ZR 17 M/C 66W TL (Michelin Power 6 or Metzeler Sportec M9 RR as OE). Category: small-displacement A2-class naked; grouped as 'small'."],"sources":[{"field_group":"drivetrain","url":"https://www.ktmshop.se/bike-manuals/24_3214960_en_OM.pdf","what":"Official KTM 2024 390 Duke Owner's Manual (art. no. 3214960en), ch. 22 Technical Specifications: primary 33:86, gear tooth pairs 1-6, secondary 15:45, 520 X-ring chain, tires, dry weight 149 kg, 15 L fuel"},{"field_group":"drivetrain","url":"https://www.ktm.com/en-ie/models/naked-bike/2024-ktm-390-duke/technical-specifications.html","what":"Official KTM spec page: 398.7 cm3, 39 Nm, 6-speed, 520 X-Ring chain, 165 kg without fuel, wheelbase 1357 mm"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/ktm/ktm-390-duke-2024.html","what":"Press-kit reprint: 33 kW / 44.3 hp @ 8500 rpm, 39 Nm @ 7000 rpm"},{"field_group":"engine","url":"https://ridermagazine.com/2024/02/15/2024-ktm-390-duke-review-first-ride/","what":"Spec table: 45 hp @ 8,500 rpm and 28.8 lb-ft @ 7,000 rpm (factory claims); 10,000 rpm redline noted in ride review"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2024/04/01/2024-ktm-390-duke-review-10-fast-facts/","what":"Spec table: 45 hp @ 8500 rpm, 29 ft-lb @ 7000 rpm"},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/ktm/sport/2024/duke/390/detail.html","what":"Corroborates rear tire Michelin 150/60 ZR17 66H, 44.2 bhp, 39 Nm"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2024-ktm-390-duke-and-250-duke-first-look","what":"Press coverage: LC4c 398.7cc peaks 1,000 rpm earlier (power) / 250 rpm earlier (torque) than outgoing 373 cc engine - confirms 8,500 / 7,000 rpm peaks vs old-gen 9,500 / 7,250"},{"field_group":"years","url":"https://www.ktm.com/en-int/models/naked-bike/2026-ktm-390-duke/technical-specifications.html","what":"Independent verification 2026-07-19: official 2026 KTM 390 Duke spec page shows same generation unchanged (398.7 cm3, 45 PS, 39 Nm, 6-speed, 520 X-Ring, 165 kg) - corroborates years 2024-2026; aftermarket sprocket fitment (sprocketcenter.com) also groups 2024-2026 together"}],"retrieved":"2026-07-19"},{"slug":"ktm-rc-390-2022","make":"KTM","model":"RC 390","years":"2022-2025","category":"small","engine":{"redline_rpm":10000,"peak_power_hp":44,"peak_power_rpm":9500,"peak_torque_nm":37,"peak_torque_rpm":7000},"drivetrain":{"primary_ratio":2.667,"primary_teeth":"80/30","gear_ratios":[2.667,1.857,1.421,1.143,0.957,0.84],"gear_teeth":["32/12","26/14","27/19","24/21","22/23","21/25"],"stock_front":15,"stock_rear":44,"chain":"520"},"rear_tire":"150/60R17","wet_weight_kg":172,"notes":["Gen-3 RC 390 (new frame/bodywork, 320 mm front disc) launched MY2022; gearing verified against official KTM owner's manuals for MY2022 (Art. no. 3214556es), MY2023 (Art. no. 3214783en) and MY2024 (Art. no. 3214954en) - all identical (primary 30:80, gears 12:32/14:26/19:27/21:24/23:22/25:21, secondary 15:44, 520 chain). MY2025 is a carryover of the same 373 cc platform per press/spec coverage, but no official MY2025 manual was found; a next-gen 399 cc RC is expected to replace this generation.","All ratios computed to 3 decimals from tooth pairs in the official owner's manuals (manual prints them driving:driven, e.g. primary '30:80' = 80/30 = 2.667; 1st '12:32' = 32/12 = 2.667). 5th (22/23 = 0.957) and 6th (21/25 = 0.840) are overdrive ratios.","STOCK REAR SPROCKET IS 44T ON THIS GENERATION (secondary ratio 15:44 = 2.933 in both the MY2022 and MY2023 official manuals). The widely-quoted 15/45 is the PREVIOUS generation (2014-2021) - aftermarket fitment charts (e.g. Driven, JT '2013-2022') and forums still list 45T and will mislead.","Peak power is a manufacturer claim: US/EU press kit says 44 hp (32 kW) @ 9,500 rpm (reprinted by Rider Magazine, webBikeWorld, ThrottlePack); KTM India's official page lists 32 kW (43.5 PS) @ 9,000 rpm for the same engine. Recorded 44 hp @ 9,500 rpm; treat rpm as +/-500 across markets. Cycle World rear-wheel dyno measured 40.16 hp @ 8,850 rpm and 24.36 lb-ft @ 6,880 rpm.","Redline is not published by KTM; recorded 10,000 rpm per Rider Magazine ('10,000-rpm redline') and ThrottlePack, with owners reporting the hard limiter at ~10,000-10,200 rpm.","Weight: 172 kg is KTM India's official kerb (wet) figure. KTM's European/PH pages quote 'weight without fuel' instead, and it varies by market/year: 154 kg (MY2023 EU manual), 158 kg (KTM Philippines MY2022 page), 159 kg (MY2022 LatAm manual). US press '342 lb' is the no-fuel figure, not wet.","OEM rear tire 150/60 R 17 M/C 66V TL (Continental ContiRoad per owner's manual); front 110/70 R 17.","Compression ratio printed as 12.6:1 in the MY2022 manual and 12.54:1 in the MY2023 manual."],"sources":[{"field_group":"drivetrain","url":"https://www.ktmshop.se/bike-manuals/23_3214783_en_OM.pdf","what":"Official KTM Owner's Manual 2023 RC 390/RC 390 GP (Art. no. 3214783en), Technical Specifications: primary 30:80; gears 12:32, 14:26, 19:27, 21:24, 23:22, 25:21; secondary 15:44; 5/8 x 1/4in (520) X-ring chain; tires 110/70 R17 / 150/60 R17; 154 kg without fuel"},{"field_group":"drivetrain","url":"https://media.autecomobility.com/recursos/pdf/manuales/KTM/56002713_MANUAL_DE_GARANTIA_RC_390_NG_Y22.pdf","what":"Official KTM 2022 RC 390 owner's manual (Spanish, Art. no. 3214556es): identical primary 30:80 and gearbox tooth pairs; 'Transmision secundaria 15:44'; 520 chain; confirms MY2022 = MY2023 gearing"},{"field_group":"drivetrain","url":"https://www.ktmshop.se/bike-manuals/24_3214954_en_OM.pdf","what":"VERIFIER 2026-07-19: Official KTM Owner's Manual 2024 RC 390 (Art. no. 3214954en), extracted from PDF: primary 30:80; gears 12:32, 14:26, 19:27, 21:24, 23:22, 25:21; secondary 15:44; 5/8 x 1/4in (520) X-ring chain; 154 kg without fuel; rear 150/60 R 17 M/C 66V TL - MY2024 gearing carryover confirmed. Verifier also re-extracted the MY2022 (es) and MY2023 (en) manual PDFs and confirmed every tooth pair, 15:44 secondary, 520 chain, and tire sizes digit-by-digit; note the MY2022 Spanish manual describes the 520 chain as O-ring ('junta torica') while the EN manuals say X-ring","verified":"2026-07-19"},{"field_group":"engine","url":"https://www.ktmindia.com/ktm-bikes/supersport/ktm-rc-390/specifications","what":"Official KTM India spec page: 32 kW (43.5 PS) @ 9000 rpm, 37 Nm @ 7000 rpm, 373.27 cc, kerb weight 172 kg"},{"field_group":"engine","url":"https://ridermagazine.com/2022/04/06/2022-ktm-rc-390-first-ride-review/","what":"Rider Magazine first ride (press-kit spec panel): 44 hp @ 9,500 rpm claimed, 27.3 lb-ft (37 Nm) @ 7,000 rpm claimed, '10,000-rpm redline'"},{"field_group":"engine","url":"https://www.cycleworld.com/story/bikes/2022-ktm-rc-390-dyno-test/","what":"Cycle World dyno test: measured 40.16 hp @ 8,850 rpm and 24.36 lb-ft @ 6,880 rpm at the rear wheel (EU-spec test unit); article does not restate the claimed figure"},{"field_group":"engine","url":"https://www.throttlepack.com/post/ktm-rc-390-specs/","what":"Secondary corroboration of ~10,000 rpm redline / rev limit (peak power 9,500 rpm, 10,000 rpm redline)"},{"field_group":"chassis","url":"https://www.ktm.com/en-ph/models/supersport/2022-ktm-rc-390/technical-specifications.html","what":"Official ktm.com (PH) 2022 RC 390 tech specs: 373 cm3, 37 Nm, 520 X-Ring chain, 158 kg without fuel, 320 mm front disc, 13.7 l tank"},{"field_group":"chassis","url":"https://www.motorcyclespecs.co.za/model/ktm/KTM_rc390_22.html","what":"Secondary spec sheet 2022 RC 390: 32 kW @ 9500 rpm, 37 Nm, rear tire 150/60 R17, 520 X-ring"},{"field_group":"drivetrain","url":"https://www.webbikeworld.com/2022-ktm-rc-390/","what":"Press-kit reprint: 44 hp @ 9,500 rpm, 37 Nm @ 7,000 rpm, 520 X-Ring chain, 6-speed"}],"retrieved":"2026-07-19"},{"slug":"kawasaki-ninja-400-2018","make":"Kawasaki","model":"Ninja 400 (EX400)","years":"2018-2023","category":"small","engine":{"redline_rpm":12000,"peak_power_hp":44.8,"peak_power_rpm":10000,"peak_torque_nm":38.0,"peak_torque_rpm":8000},"drivetrain":{"primary_ratio":2.219,"primary_teeth":"71/32","gear_ratios":[2.929,2.056,1.619,1.333,1.154,1.037],"gear_teeth":["41/14","37/18","34/21","32/24","30/26","28/27"],"stock_front":14,"stock_rear":41,"chain":"520"},"rear_tire":"150/60R17","wet_weight_kg":168,"notes":["Generation: single generation 2018+; gearbox ratios, primary reduction, and 14/41 final drive are unchanged across all model years and markets (2018-2023 in the US, continued past 2023 in some markets before replacement by Ninja 500).","Peak power is Kawasaki Europe's full-power claim: 33.4 kW (45 PS / 44.8 hp) @ 10,000 rpm. Kawasaki USA published no power figure; some markets and US press-kit reprints list up to 36 kW (49 hp) @ 10,000 rpm (Wikipedia gives the claimed range 33.4-36.5 kW).","Peak torque is the 2018 Euro4/global claim 38.0 Nm (3.9 kgf-m) @ 8,000 rpm; later Euro5 EU-market specs (2023) list 37 Nm @ 8,000 rpm.","redline_rpm 12,000 is the tachometer redline as reported in press reviews (RevZilla: '12,000 rpm redline on the tach'); Kawasaki does not publish a redline spec, and the soft limiter allows brief over-rev past indicated redline.","All gear ratios are published by Kawasaki as both ratio and tooth pair; ratios recomputed from teeth match to 3 decimals (e.g. 41/14 = 2.929, primary 71/32 = 2.219). Final reduction 2.929 (41/14) coincidentally equals the 1st gear pair.","Chain pitch 520 (stock 106 links) is from OEM-fitment parts databases; Kawasaki spec sheets state only 'sealed chain'.","wet_weight_kg 168 is the EU/global curb mass for the ABS model; Kawasaki USA official figures (owner's manual EX400G/H, 2018 press release, 2023 spec sheet) are 166 kg/366 lb ABS (167 kg CAL) and 164 kg/362 lb non-ABS (165 kg CAL); the 2021 US spec sheet lists 368.2 lb.","Rear tire full designation: 150/60R17 M/C 66H (radial), OEM Dunlop Sportmax GPR-300, confirmed in the Kawasaki owner's manual and 2021 US spec sheet. CAUTION: Kawasaki USA's 2023 web spec sheet misprints the rear tire as '150/70-17' (and bikez repeats it); the owner's manual, 2021 US sheet, and EU specs all say 150/60R17.","VERIFIED (2026-07-19): primary ratio, all six gear ratios with tooth pairs, and final reduction confirmed digit-by-digit against the official Kawasaki owner's manual (EX400G/H): primary 2.219 (71/32), 1st-6th 2.929 (41/14)/2.056 (37/18)/1.619 (34/21)/1.333 (32/24)/1.154 (30/26)/1.037 (28/27), final 2.929 (41/14), overall top-gear 6.738 \u2014 internally consistent (2.21875 x 1.03704 x 2.92857 = 6.738).","kawasaki.com official spec-sheet PDFs (2021 and 2023 Ninja 400 ABS) were successfully retrieved on 2026-07-19 via direct download (browser UA); the earlier redirect-loop note no longer applies.","gearingcommander.com was not used."],"sources":[{"field_group":"drivetrain","url":"https://maintenanceschedule.com/wp-content/uploads/2023/01/Kawasaki-Ninja-400-manual.pdf","what":"PRIMARY (verifier, 2026-07-19): official Kawasaki Ninja 400 owner's manual (EX400G/H) \u2014 primary 2.219 (71/32), final 2.929 (41/14), gears 2.929 (41/14)/2.056 (37/18)/1.619 (34/21)/1.333 (32/24)/1.154 (30/26)/1.037 (28/27), overall 6.738 top gear, tires 110/70R17 M/C 54H & 150/60R17 M/C 66H (Dunlop Sportmax GPR-300), curb mass EX400G 166 kg (CAL 167), EX400H 164 kg (CAL 165)"},{"field_group":"chassis","url":"https://www.kawasaki.com/en-us/products/ProductSpecSheetPDF/2021-ninja-400-abs","what":"PRIMARY (verifier, 2026-07-19, retrieved via direct download): official 2021 US spec sheet \u2014 rear tire 150/60-17, curb 368.2 lb, 70.0x51.8 mm, 11.5:1, 6-speed, sealed chain final drive"},{"field_group":"chassis","url":"https://www.kawasaki.com/en-us/products/ProductSpecSheetPDF/2023-ninja-400-abs","what":"PRIMARY (verifier, 2026-07-19): official 2023 US spec sheet \u2014 curb 366.0 lb ABS / 361.6 lb non-ABS; NOTE its 'Rear Tire 150/70-17' is a misprint contradicted by the owner's manual, the 2021 sheet, and EU specs"},{"field_group":"drivetrain","url":"https://www.moto-data.net/kawasaki/ninja-400-abs-2019-2020","what":"Verifier corroboration: identical gear ratios/teeth 1st-6th, final 2.929 (41/14), rear 150/60R17 M/C 66H, 38 Nm @ 8,000 rpm; lists the other-market 36 kW / 49 hp @ 10,000 rpm claim"},{"field_group":"drivetrain","url":"https://www.bikez.com/motorcycles/kawasaki_ninja_400_2018.php","what":"Verifier corroboration for chain/sprockets: 520 chain, 106 links, 14/41 front/rear (its tire and power-rpm entries are unreliable and were not used)"},{"field_group":"drivetrain","url":"https://www.motorcyclespecs.co.za/model/kawasaki/Kawasaki_Ninja_400_18.htm","what":"Full official-spec reprint: gear ratios with tooth pairs 2.929(41/14)/2.056(37/18)/1.619(34/21)/1.333(32/24)/1.154(30/26)/1.037(28/27), primary 2.219 (71/32), final 2.929 (41/14), rear tire 150/60R17 M/C 66H"},{"field_group":"drivetrain","url":"https://bikeswiki.com/Kawasaki_Ninja_400_(2018+)","what":"Independent corroboration: gear ratios 2.928/2.055/1.619/1.333/1.153/1.037, primary 2.218, final 2.928, curb 168 kg, 150/60R17, 45 hp (33.4 kW) @ 10,000 rpm, 38 Nm @ 8,000 rpm"},{"field_group":"drivetrain","url":"https://www.amazon.com/NICHE-Drive-Sprocket-Kawasaki-X-Ring/dp/B0DSWJ1GY5","what":"OEM fitment: 14T front / 41T rear, 520 chain, 106 links (Ninja 400 EX400 2018-2023)"},{"field_group":"drivetrain","url":"https://www.denniskirk.com/chain-and-links/2020-kawasaki-ex400g-ninja-400","what":"Second OEM-fitment corroboration: 520 x 106 chain, 14/41 sprockets for EX400 Ninja 400"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/kawasaki/ninja-400/2018/","what":"MCN spec table: 44 bhp, 28 lb-ft (38 Nm), kerb weight 168 kg, rear tyre 150/60-17"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2018-kawasaki-ninja-400-first-ride-motorcycle-review","what":"Kawasaki Europe claim ~44 hp @ 10,000 rpm and 28 lb-ft @ 8,000 rpm; quote: '12,000 rpm redline on the tach'"},{"field_group":"engine","url":"https://en.wikipedia.org/wiki/Kawasaki_Ninja_400","what":"Claimed power range 33.4-36.5 kW (44.8-49 hp) @ 10,000 rpm; claimed torque 38 Nm @ 8,000 rpm; 168 kg wet; 150/60-17 rear"},{"field_group":"chassis","url":"https://content2.kawasaki.com/contentstorage/kmc/products/7566/pressrelease/2018-kawasaki-ninja-400-press-release_final.pdf","what":"PRIMARY: Kawasaki USA 2018 press release - 399cc parallel twin, 70.0 x 51.8 mm, 11.5:1, 362 lb (non-ABS) curb, 150 mm rear tire, 53.9 in wheelbase, close-ratio 6-speed with assist & slipper clutch"},{"field_group":"engine","url":"https://www.ninja400riders.com/threads/is-13200-displayed-rpm-real-is-11800-real-max-rpm.7210/","what":"Owner-community corroboration of ~12,000 rpm indicated redline / soft limiter behavior"}],"retrieved":"2026-07-19"},{"slug":"kawasaki-ninja-500-2024","make":"Kawasaki","model":"Ninja 500","years":"2024-2026","category":"small","engine":{"redline_rpm":11700,"peak_power_hp":51,"peak_power_rpm":10000,"peak_torque_nm":43.0,"peak_torque_rpm":7500},"drivetrain":{"primary_ratio":2.029,"primary_teeth":"69/34","gear_ratios":[2.929,2.056,1.619,1.333,1.154,1.037],"gear_teeth":["41/14","37/18","34/21","32/24","30/26","28/27"],"stock_front":14,"stock_rear":43,"chain":"520"},"rear_tire":"150/60R17","wet_weight_kg":171,"notes":["Gear ratios and tooth pairs verified digit-for-digit against Kawasaki's own current spec page (kawasaki.eu, 2026 Ninja 500) and the official Kawasaki Motors Australia model-information PDF; ratios are driven/drive teeth and match computed values to 3 decimals (41/14 = 2.929, 37/18 = 2.056, 34/21 = 1.619, 32/24 = 1.333, 30/26 = 1.154, 28/27 = 1.037, 69/34 = 2.029, 43/14 = 3.071).","Final reduction 3.071 (43/14) per kawasaki.eu: stock sprockets 14T front / 43T rear on a 520 chain; 520 pitch corroborated by SprocketCenter OEM-gearing fitment and SportbikeTrackGear stock-replacement 520 kits for 2024-2026 (Kawasaki itself publishes only 'sealed chain'). Note: the KMA Australia PDF misprints final reduction as '3.017 (43/14)' - a transposition typo; the tooth pair computes to 3.071 and kawasaki.eu prints 3.071. Stock chain link count not verified.","Engine peak figures recorded are the US-market manufacturer claims: 51 hp @ 10,000 rpm and 31.7 lb-ft @ 7,500 rpm (converted: 43.0 Nm), described as Kawasaki claims by Cycle World, RevZilla, and Cycle News. EU/A2/AU official tune claims 33.4 kW {45 PS, i.e. 45.4 PS unrounded} @ 9,000 rpm and 42.6 Nm @ 6,000 rpm (kawasaki.eu and KMA PDF, verified).","Redline 11,700 rpm is press-reported (Cycle News: 'redline at 11,700 rpm'; RevZilla: 'down to 11,700 rpm from nearly 13,000' vs Ninja 400); Kawasaki does not publish a redline figure.","Wet weight 171 kg is Kawasaki's official EU/AU curb mass (verified on kawasaki.eu and in the KMA PDF). Kawasaki USA claims: 370.4 lb (168 kg) non-ABS, 374.9 lb (170 kg) ABS, 379.3 lb (172 kg) SE ABS (Cycle News spec reprint; Cycle World lists 370/375 lb).","Model years 2024-2026 share this gearing: the kawasaki.eu 2026-model spec block is identical to the 2024 press-kit values and aftermarket fitment listings span 2024-2026 unchanged; generation is the EX500 451cc parallel twin introduced for 2024.","Verifier correction 2026-07-19: removed a mislabeled source (kawasaki.co.za Ninja-500 PDF URL actually serves a 'Ninja 400 - 2022' document and does not corroborate anything here); replaced with kawasaki.eu spec page and KMA Australia PDF, both fetched and read directly. All numeric fields re-derived and confirmed unchanged."],"sources":[{"field_group":"drivetrain","url":"https://www.totalmotorcycle.com/motorcycles/2024/2024-kawasaki-ninja-500-abs","what":"Kawasaki press-kit spec block reprint: primary 2.029 (69/34); gears 2.929 (41/14), 2.056 (37/18), 1.619 (34/21), 1.333 (32/24), 1.154 (30/26), 1.037 (28/27); final 3.071 (43/14); 6-speed, sealed chain"},{"field_group":"drivetrain","url":"https://www.phillipmccallen.com/ninja-500-2024.html","what":"Kawasaki UK dealer reprint of the same official spec block - identical primary/gear/final ratios and tooth pairs; curb mass 171 kg"},{"field_group":"drivetrain","url":"https://bikeswiki.com/Kawasaki_Ninja_500","what":"Service-manual data: primary 2.029, final 3.071, gear ratios (truncated 2.928/2.055/1.619/1.333/1.153/1.037); also USA 51 hp (37.5 kW) @ 10,000 rpm ISO 4106 vs EU 45.4 hp @ 9,000 rpm"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1393176-street-kawasaki-ex-500-ninja-2024-2026.html","what":"OEM gearing 14T front / 43T rear, 520 chain, fitment 2024-2026"},{"field_group":"drivetrain+engine+chassis","url":"https://www.kawasaki.eu/en/Motorcycles/A2_Bikes/Ninja_500_2026.html/EX500GTFNN/EX500GTFNNSP","what":"MANUFACTURER (verified 2026-07-19): primary 2.029 (69/34); gears 2.929 (41/14), 2.056 (37/18), 1.619 (34/21), 1.333 (32/24), 1.154 (30/26), 1.037 (28/27); final 3.071 (43/14); sealed chain; 33.4 kW {45 PS} @ 9,000 rpm; 42.6 Nm @ 6,000 rpm; rear tyre 150/60 R17 M/C 66H; curb mass 171 kg"},{"field_group":"drivetrain+engine+chassis","url":"https://suttos.com.au/storage/app/media/MOTORCYCLES/KAWASAKI/2024/ROAD/NINJA%20500/KMA%20Model%20Information_24_NINJA%20500_EX500GRFNW_NINJA%20500%20SE_EX500JRFBW_Large.pdf","what":"Official Kawasaki Motors Australia 2024 model-information PDF (text extracted 2026-07-19): same gear ratios/teeth, primary 2.029 (69/34), 33.4 kW {45 PS} @ 9,000, 42.6 Nm @ 6,000, 171 kg; final reduction misprinted '3.017 (43/14)' (typo; teeth compute 3.071)"},{"field_group":"drivetrain","url":"https://www.sportbiketrackgear.com/vortex-kawasaki-ninja-500-2024-v3-chain-and-sprocket-kit/","what":"Independent aftermarket fitment: 520 chain-and-sprocket stock-replacement kits listed for Ninja 500 2024-2026, corroborating 520 pitch"},{"field_group":"engine","url":"https://www.cycleworld.com/kawasaki/ninja-500/","what":"Claimed 51 hp @ 10,000 rpm and 31.7 lb-ft @ 7,500 rpm (US press kit)"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2024-kawasaki-ninja-500-first-ride-motorcycle-review","what":"Kawasaki claims 51 hp @ 10,000 rpm; redline 'down to 11,700 rpm from nearly 13,000'"},{"field_group":"engine","url":"https://www.cyclenews.com/2024/07/article/2024-kawasaki-ninja-500-review/","what":"'redline at 11,700 rpm' and 11.3:1 compression, vs Ninja 400 comparison"},{"field_group":"chassis","url":"https://www.cyclenews.com/2024/01/article/new-2024-kawasaki-ninja-500-sportbike-model-specs-and-price/","what":"Kawasaki USA specs: torque 31.7 lb-ft @ 7,500 rpm; rear tire 150/60-17; curb weight 374.9 (ABS)/379.3 (SE ABS)/370.4 (non-ABS) lb"}],"retrieved":"2026-07-19"},{"slug":"kawasaki-zx-10r-2021","make":"Kawasaki","model":"Ninja ZX-10R","years":"2021-2025","category":"superbike","engine":{"redline_rpm":14250,"peak_power_hp":200.2,"peak_power_rpm":13200,"peak_torque_nm":114.9,"peak_torque_rpm":11400,"redline_estimated":true},"drivetrain":{"primary_ratio":1.681,"primary_teeth":"79/47","gear_ratios":[2.6,2.158,1.882,1.65,1.476,1.304],"gear_teeth":["39/15","41/19","32/17","33/20","31/21","30/23"],"stock_front":17,"stock_rear":41,"chain":"525"},"rear_tire":"190/55ZR17","wet_weight_kg":207,"notes":["Generation: the 2021 full redesign (Euro5), unchanged in gearing through 2025. 2021 shortened 1st-3rd internal ratios vs 2016-2020 and moved final drive from 17/39 to 17/41.","Gear ratios and tooth pairs are Kawasaki Europe press-kit values, corroborated identically by two independent spec reprints (Total Motorcycle Euro spec section, motorcyclespecs.co.za). All published ratios match teeth computed to 3 decimals (e.g. 41/19 = 2.158, 30/23 = 1.304).","Final reduction: 41/17 = 2.412 (computed from teeth). Caution: motorcyclespecs.co.za lists 'final reduction 2.294 (39/17)', a carryover error from the 2016-2020 generation; the 17/41 final drive is confirmed by the Kawasaki press-kit reprint at MCNews.com.au and by 2021+ launch coverage (MCN, Cycle World).","Power is the manufacturer claim: 149.3 kW (203 PS = 200.2 hp) at 13,200 rpm without ram air; 156.8 kW (213 PS) at 13,200 rpm with ram air. Kawasaki USA publishes no hp figure; US models show peak power lower in the rev range (~11,500 rpm) due to noise-regulation mapping (RevZilla).","Torque is the manufacturer claim: 114.9 Nm at 11,400 rpm.","redline_rpm NULLED by verifier 2026-07-19: Kawasaki publishes no redline, and the only independent source for a stock limiter value is BT Moto ('stock RPM limiter is set to 13,800 RPM' \u2014 single origin; their blog repeats their product page). RevZilla's 'tach indicates near 14,000 rpm' describes the indicated red zone, a different quantity. Fails the >=2-independent-sources bar; candidates for future confirmation: 13,800 (BT Moto, ECU-read) / ~14,000 indicated (RevZilla).","Chain: OEM is 525 pitch, 116 links \u2014 Kawasaki part 92057-0818 CHAIN,DRIVE,RK525KZX,116L per OEM parts fiche (fits 2021+ ZX-10R/RR), corroborated by 2021-2025 aftermarket fitment listings (Sprocket Center). Not a field on Kawasaki's spec sheet, which says only 'sealed chain'. [Verifier 2026-07-19: corrected earlier note that claimed an EK chain with ~114-120 links.]","Rear tire full designation: 190/55ZR17M/C (75W), OEM Bridgestone.","wet_weight_kg is Kawasaki curb mass claim: 207 kg (456.4 lb); ZX-10RR variant is 205 kg and shares gearing.","Independently verified 2026-07-19 against Kawasaki's official UK spec page for this generation: primary 1.681 (79/47), all six gear ratios/teeth, final 2.412 (41/17), 149.3 kW {203 PS} @ 13,200 rpm (156.8 kW {213 PS} ram air), 114.9 Nm @ 11,400 rpm, 207 kg curb, 190/55ZR17M/C (75W) all match digit-for-digit; no redline published by Kawasaki. 203 PS = 200.2 mechanical hp (x0.98632).","Redline is not published by the manufacturer; the chart ceiling is an estimate (claimed power peak + 8%)."],"sources":[{"field_group":"all","url":"https://www.kawasaki.co.uk/en/Motorcycles/Supersport_Sport/ninja_zx-10r-2025.html","what":"MANUFACTURER (verifier, 2026-07-19): official Kawasaki UK spec page for the 2021-2025 generation. Primary 1.681 (79/47); gears 2.600 (39/15), 2.158 (41/19), 1.882 (32/17), 1.650 (33/20), 1.476 (31/21), 1.304 (30/23); final 2.412 (41/17), sealed chain; 149.3 kW {203 PS} @ 13,200 rpm, ram air 156.8 kW {213 PS} @ 13,200 rpm; 114.9 Nm @ 11,400 rpm; curb 207 kg; rear 190/55 ZR17 M/C (75W); no redline listed"},{"field_group":"drivetrain","url":"https://www.adeptpowersports.com/oem-parts/kawasaki-chain-drive-rk525kzx-116l-92057-0818-part.html","what":"OEM parts fiche (verifier, 2026-07-19): Kawasaki 92057-0818 CHAIN,DRIVE,RK525KZX,116L \u2014 525-pitch OEM chain fitment for 2021+ ZX-10R/RR"},{"field_group":"drivetrain","url":"https://www.totalmotorcycle.com/motorcycles/2021/2021-kawasaki-ninja-zx10r","what":"Kawasaki Europe press-spec reprint: primary 1.681 (79/47); gears 2.600 (39/15), 2.158 (41/19), 1.882 (32/17), 1.650 (33/20), 1.476 (31/21), 1.304 (30/23); power/torque, curb mass, rear tire"},{"field_group":"drivetrain","url":"https://www.motorcyclespecs.co.za/model/kawasaki/kawasaki_zx10r_21.html","what":"Independent corroboration of primary ratio and all six gear ratios/teeth; power, torque, wet weight, rear tire. Its 39/17 final-reduction line is a prior-gen carryover error (see notes)"},{"field_group":"drivetrain","url":"https://www.mcnews.com.au/2021-kawasaki-ninja-zx-10r-specifications/","what":"Kawasaki press-kit reprint: final drive 17/41, torque 114.9 Nm @ 11,400 rpm, 200 hp @ 13,200 rpm, 207 kg, 190/55 ZR17"},{"field_group":"drivetrain","url":"https://www.motorcyclenews.com/bike-reviews/kawasaki/zx-10r/2021/","what":"2021-2025 generation coverage: 1st-3rd shortened, rear sprocket up two teeth to 41 (17/41)"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392953-street-kawasaki-zx-10r-rr-ninja-2021-2025.html","what":"2021-2025 fitment: OEM 525 pitch chain, 17/41 stock sprockets"},{"field_group":"engine","url":"https://bt-moto.com/product/2021-kawasaki-zx-10r-flash-tuning-w-diagnostic-tool","what":"Stock rev limiter: 'The stock RPM limiter is set to 13,800 RPM'"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2021-kawasaki-zx-10r-first-ride-review","what":"Tach indicates near 14,000 rpm; Kawasaki Europe claims 200 hp @ 13,200 rpm; US mapping peaks ~11,500 rpm"},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/kawasaki/sport/2021/ninja-zx-10r/base/detail.html","what":"Curb weight 456.4 lb / 207 kg; rear tire Bridgestone 190/55 ZR17"}],"retrieved":"2026-07-19"},{"slug":"kawasaki-zx-4rr-2023","make":"Kawasaki","model":"Ninja ZX-4RR","years":"2023-2026","category":"small","engine":{"redline_rpm":16000,"peak_power_hp":76.4,"peak_power_rpm":14500,"peak_torque_nm":39.0,"peak_torque_rpm":13000},"drivetrain":{"primary_ratio":2.029,"primary_teeth":"69/34","gear_ratios":[2.929,2.056,1.619,1.333,1.154,1.037],"gear_teeth":["41/14","37/18","34/21","32/24","30/26","28/27"],"stock_front":14,"stock_rear":48,"chain":"520"},"rear_tire":"160/60ZR17","wet_weight_kg":188,"notes":["All gearbox ratios, tooth pairs, primary reduction 2.029 (69/34) and final reduction 3.429 (48/14) are from Kawasaki's official Feb 2023 global press-release spec sheet (news_230202-1e.pdf); published ratios match the tooth pairs to 3 decimals (e.g. 41/14 = 2.929).","Power is a manufacturer claim: 57.0 kW (77 PS) / 14,500 rpm, or 58.7 kW (80 PS) / 14,500 rpm with RAM Air (Kawasaki EU). peak_power_hp = 76.4 is 57.0 kW converted to mechanical hp; with ram air the claim converts to ~78.7 hp.","Torque is a manufacturer claim: 39.0 Nm (4.0 kgf-m) @ 13,000 rpm (Kawasaki EU).","redline_rpm 16000 is the indicated tachometer redline widely reported at launch (MotorcycleDaily, Rider Magazine, Cycle News); Kawasaki itself only says the limiter is 'over 15,000 rpm' (no exact figure on any manufacturer page), and US-spec rev-limit behavior has been reported slightly below the indicated 16k (Motorcycle.com).","Market-spec torque claims differ: Kawasaki EU/global claims 39.0 Nm @ 13,000 rpm (recorded here); Kawasaki USA press-kit figures reprinted at launch (Ultimate Motorcycling, MotorcycleDaily) state 26.5 lb-ft (35.9 Nm) @ 11,000 rpm for the US model. The EU manufacturer claim is used as it is the figure Kawasaki publishes with full precision on its own spec pages.","Curb mass: 188 kg for ZX-4R/ZX-4RR per the global press release (SE model 189 kg); Kawasaki EU market page lists 189 kg for the ZX-4RR. US spec 414.5 lb = 188.0 kg. Recorded 188 kg.","Chain size 520 (stock 114 links) is not stated on the Kawasaki spec sheet (which says only 'sealed chain'); verified via multiple independent OEM-fitment sources (Driven Racing application chart, Sprocket Center, SportbikeTrackGear), consistent with the 14/48 sprockets from Kawasaki.","Gearing and engine specs unchanged across 2023-2026 model years; ZX-4R (77 PS non-RR variant) shares the identical gearbox and final drive per the same press release.","Independently re-verified 2026-07-19: press-release PDF (news_230202-1e.pdf) text extracted directly and matches all gear tooth pairs/ratios, primary 2.029 (69/34), final 3.429 (48/14), curb mass 188 kg (SE 189 kg) digit-for-digit; Kawasaki EU and Kawasaki UK 2026 model pages independently confirm identical ratios, 57.0 kW (77 PS)/14,500 rpm (58.7 kW/80 PS with RAM air), 39.0 Nm/13,000 rpm, and rear tire 160/60 ZR17 M/C (69W).","Second independent verification pass 2026-07-19: press-release PDF re-downloaded and text re-extracted \u2014 full spec table read cleanly, confirming ratios 2.929 (41/14), 2.056 (37/18), 1.619 (34/21), 1.333 (32/24), 1.154 (30/26), 1.037 (28/27), primary/secondary 2.029 (69/34) / 3.429 (48/14), rear tire 160/60ZR17M/C (69W), curb mass 'Ninja ZX-4R / Ninja ZX-4RR: 188 kg, Ninja ZX-4R SE: 189 kg' (the 189 kg SE is the ZX-4R SE variant); Kawasaki EU 2026 ZX-4RR page re-fetched and matches all ratios/power/torque/tires (EU curb 189 kg, market variation already noted). Chain 520 with 14/48 sprockets and 114 links re-confirmed on Sprocket Center and SportbikeTrackGear fitment listings. US curb 414.5 lb = 188.0 kg corroborated. All arithmetic re-checked: every published ratio equals its tooth pair to 3 decimals; 57.0 kW = 76.4 hp. Corrections this pass were provenance-only (misattributed redline citation; added note on US-vs-EU torque claim): no numeric field changed."],"sources":[{"field_group":"drivetrain","url":"https://global.kawasaki.com/news_230202-1e.pdf","what":"Kawasaki official press-release spec sheet (Feb 2, 2023): gear ratios 1-6 with tooth pairs, primary reduction 2.029 (69/34), secondary/final reduction 3.429 (48/14), tires, curb mass 188 kg, 399 cc engine details"},{"field_group":"engine","url":"https://www.kawasaki.eu/en/EICMA/Ninja_ZX-4RR.html","what":"Kawasaki EU official ZX-4RR page: max power 57.0 kW (77 PS) @ 14,500 rpm, 58.7 kW (80 PS) @ 14,500 rpm with RAM Air, max torque 39.0 Nm @ 13,000 rpm, final reduction 3.429 (48/14)"},{"field_group":"drivetrain","url":"https://www.drivenracing.com/sites/default/files/app-charts/Chain%20&%20Sprocket%20Application%20Chart%20Kawasaki_1.pdf","what":"Driven Racing Kawasaki application chart: ZX-4RR stock 520 chain, 14/48 sprockets, 114 links (secondary corroboration 1 for chain size)"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/i-30500760-520-chain-kit-superlite-rsx-sprocket-set-with-choice-of-chain-kawasaki-zx-4rr-ninja-23-26.html","what":"Sprocket Center OEM-fitment listing for ZX-4RR 2023-26: 520 pitch chain, 14T front / 48T rear stock (secondary corroboration 2 for chain size)"},{"field_group":"engine","url":"https://www.motorcycledaily.com/2023/02/kawasaki-announces-new-zx-4rr-four-cylinder-supersport-with-16000-rpm-redline/","what":"Launch press coverage: 16,000 rpm indicated redline (secondary corroboration 1 for redline)"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2023/02/01/2023-kawasaki-ninja-zx-4rr-first-look-17-fast-facts-30-pics/","what":"Launch press coverage from Kawasaki press kit. CORRECTED 2026-07-19: this article does NOT state a 16,000 rpm redline \u2014 it says 'rev limiter kicks in at over 15,000 rpm' and quotes the US-market torque claim 26.5 ft-lbs @ 11,000 rpm; kept as documentation of the US-spec claims, not as redline corroboration"},{"field_group":"engine","url":"https://ridermagazine.com/2023/07/17/2023-kawasaki-ninja-zx-4rr-first-ride-review/","what":"Verifier-added (2026-07-19): Rider Magazine first ride \u2014 '16,000-rpm redline' (secondary corroboration 2 for redline, replacing the misattributed Ultimate Motorcycling citation)"},{"field_group":"engine","url":"https://www.cyclenews.com/2023/08/article/2023-kawasaki-ninja-zx-4rr-review/","what":"Verifier-added (2026-07-19): Cycle News review \u2014 'screaming 16,000 rpm redline' (secondary corroboration 3 for redline)"},{"field_group":"all","url":"https://www.kawasaki.co.uk/en/Motorcycles/Supersport_Sport/Ninja_zx-4rr_2026.html","what":"Verifier-added (2026-07-19): Kawasaki UK official 2026 Ninja ZX-4RR page \u2014 confirms all six gear ratios with tooth pairs, primary 2.029 (69/34), final 3.429 (48/14), 57.0 kW (77 PS)/14,500 rpm and 58.7 kW (80 PS) with RAM air, 39.0 Nm/13,000 rpm, rear tire 160/60 ZR17 M/C (69W), curb mass 189 kg (EU/UK spec) \u2014 unchanged for 2026 model year"},{"field_group":"drivetrain","url":"https://www.sportbiketrackgear.com/driven-520-chain-and-sprocket-kit-kawasaki-zx-4rr-2023/","what":"Verifier-added (2026-07-19): SportbikeTrackGear Driven kit listing for ZX-4RR 2023-25 \u2014 stock 520 pitch, 14/48 sprockets (additional independent corroboration for chain size)"}],"retrieved":"2026-07-19"},{"slug":"kawasaki-zx-6r-2019","make":"Kawasaki","model":"Ninja ZX-6R (636)","years":"2019-2023","category":"supersport-600","engine":{"redline_rpm":16000,"peak_power_hp":127.9,"peak_power_rpm":13500,"peak_torque_nm":70.8,"peak_torque_rpm":11000},"drivetrain":{"primary_ratio":1.9,"primary_teeth":"76/40","gear_ratios":[2.846,2.2,1.85,1.6,1.421,1.3],"gear_teeth":["37/13","33/15","37/20","32/20","27/19","26/20"],"stock_front":15,"stock_rear":43,"chain":"520"},"rear_tire":"180/55ZR17","wet_weight_kg":196,"notes":["Generation ZX636G/H/J (model code ZX636GKF/HKF onward). 2019 update shortened final drive from 43/16 (2.688) to 43/15 (2.867) vs the 2013-2018 model; internal gearbox ratios and primary (1.900) unchanged. Recorded years 2019-2023: the 2024 refresh (ZX636K) kept the drivetrain unchanged (verified on Kawasaki EU's current page: same six ratios, 1.900 (76/40) primary, 2.867 (43/15) final) but revised engine tuning \u2014 claimed 91.0 kW {124 PS} (~122 hp) @ 13,000 rpm, 69.0 Nm @ 10,800 rpm, curb 198 kg \u2014 so engine figures here apply to 2019-2023 only.","Peak power is the manufacturer claim WITHOUT ram air, published on EU-market spec sheets as 95.4 kW {130 PS} @ 13,500 rpm; 95.4 kW = 127.9 mechanical hp (ultimatespecs lists 127.93 hp, MCN 128 bhp; BikesWiki rounds to 95.5 kW). With ram air Kawasaki claims 100 kW {136 PS} @ 13,500 rpm (Kawasaki Canada spec reprint). Wikipedia's 94.9 kW (127.3 hp) is an outlier conversion that does not match any manufacturer sheet.","Peak torque manufacturer claim: 70.8 Nm @ 11,000 rpm (Kawasaki Canada rounds to 71 Nm). Some US listings state 52.1 lb-ft @ 11,500 rpm; the 11,000 rpm figure follows the global/EU spec and majority of sources.","Redline 16,000 rpm is the indicated tachometer redline reported by press reviews (MCN, webBikeWorld); Kawasaki does not publish a redline in the spec sheet.","Gear ratios and tooth pairs from Kawasaki Heavy Industries global press-release spec table; all tooth pairs recompute to the published ratios to 3 decimals (final 43/15 = 2.867).","Chain: 520 pitch, 112 links stock (SprocketCenter and Driven Racing OEM application data; Kawasaki spec sheet says only 'sealed chain').","Wet weight 196 kg is Kawasaki's curb mass for the ABS model; non-ABS (where sold) is 193 kg.","Official rear tire spec: 180/55ZR17M/C (73W), OEM Bridgestone Battlax Hypersport S22."],"sources":[{"field_group":"drivetrain","url":"https://global.kawasaki.com/en/corp/newsroom/news/detail/?f=20181012_9701","what":"Kawasaki Heavy Industries official 2019 ZX-6R press release spec table: gear ratios 1st-6th with teeth (2.846 (37/13), 2.200 (33/15), 1.850 (37/20), 1.600 (32/20), 1.421 (27/19), 1.300 (26/20)), primary/final reduction 1.900 (76/40) / 2.867 (43/15), rear tire 180/55ZR17M/C (73W), curb mass 196 kg ABS / 193 kg"},{"field_group":"drivetrain","url":"https://content2.kawasaki.com/contentstorage/kmc/products/7674/pressrelease/2019_kawasaki_zx_6r_press_release.205149145.pdf","what":"Kawasaki USA official 2019 press release: confirms new shorter 15/43 final gearing, cassette gearbox, S22 tires, 180/55ZR17M/C (73W) rear"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/i-30500371-520-chain-kit-steel-sprocket-set-with-choice-of-chain-kawasaki-zx-6r-636-19-24.html","what":"SprocketCenter OEM application data for ZX-6R 636 2019+: stock 15/43, 520 pitch, 112 links"},{"field_group":"drivetrain","url":"https://www.kitdecadena.com/en/products/did-chain-sprocket-kits/sprocket-kit-did-Kawasaki/zx-6r-636/kawasaki-zx-6r-ninja-636-19-19-standard-chain-kit","what":"DID standard-kit application for ZX-6R 636 2019: 520 chain, 15T front / 43T rear stock sizes (second independent source for 520 pitch)"},{"field_group":"engine","url":"https://bikeswiki.com/Kawasaki_ZX-6R_(636)","what":"BikesWiki factory-spec reprint for 2019+ ZX636G/H: 130 hp (95.5 kW) @ 13,500 rpm standard, 136 hp (100 kW) with ram air, 70.8 Nm @ 11,000 rpm"},{"field_group":"engine","url":"https://www.totalmotorcycle.com/motorcycles/2019/2019-kawasaki-ninja-zx6r","what":"Kawasaki Canada spec reprint: max power 100 kW {136 PS} @ 13,500 rpm (ram air), 71 Nm @ 11,000 rpm, final reduction 2.867 (43/15), primary 1.900 (76/40), curb 193 kg (non-ABS)"},{"field_group":"engine","url":"https://www.motoplanete.us/kawasaki/7344/ZX-6-R-636-2019/contact.html","what":"Secondary spec listing: 130 PS (128.2 hp) @ 13,500 rpm, 7.2 kgf-m @ 11,000 rpm, 43/15 final drive, 196 kg curb"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/kawasaki/zx-6r/2019/","what":"MCN 2019-2021 review: 128 bhp / 52 ft-lb claimed, 196 kg, states 16,000 rpm red line"},{"field_group":"engine","url":"https://www.webbikeworld.com/2021-kawasaki-ninja-zx-6r/","what":"webBikeWorld 2021 ZX-6R spec article: 636cc inline-four with 16,000 rpm redline (second source for redline)"},{"field_group":"chassis","url":"https://global.kawasaki.com/en/corp/newsroom/news/detail/?f=20181012_9701","what":"Curb mass 196 kg (Ninja ZX-6R ABS) / 193 kg (Ninja ZX-6R); rear tire 180/55ZR17M/C (73W)"},{"field_group":"verification","url":"https://global.kawasaki.com/en/corp/newsroom/news/detail/?f=20181012_9701","what":"VERIFIER re-fetch 2026-07-19: Kawasaki global press release spec table re-confirmed digit-by-digit \u2014 1st 2.846 (37/13), 2nd 2.200 (33/15), 3rd 1.850 (37/20), 4th 1.600 (32/20), 5th 1.421 (27/19), 6th 1.300 (26/20); primary/final 1.900 (76/40) / 2.867 (43/15); rear 180/55 ZR17M/C 73W; curb 196 kg ABS / 193 kg"},{"field_group":"verification","url":"https://www.kawasaki.eu/en/EICMA/Ninja_ZX-6R.html","what":"VERIFIER 2026-07-19: Kawasaki EU current (2024+ ZX636K) page \u2014 drivetrain identical to 2019 (same six ratios, 1.900 (76/40), 2.867 (43/15), 180/55 ZR17); 2024 engine claim 91.0 kW {124 PS} @ 13,000 rpm (95.2 kW {129 PS} ram air), 69.0 Nm @ 10,800 rpm, 198 kg \u2014 source for the 2024-refresh note"},{"field_group":"verification","url":"https://www.motofichas.com/marcas/kawasaki/ninja-zx-6r-2019","what":"VERIFIER 2026-07-19: EU spec reprint \u2014 95.4 kW (130 PS) @ 13,500 rpm for 2019-2020 ZX-6R (corroborated by motorbikemag.es and ultimatespecs 127.93 hp @ 13,500)"},{"field_group":"verification","url":"https://content2.kawasaki.com/contentstorage/kmc/products/7674/pressrelease/2019_kawasaki_zx_6r_press_release.205149145.pdf","what":"VERIFIER 2026-07-19: PDF text extracted directly \u2014 confirms 'all-new shorter final gear ratio (15/43)', cassette transmission, Bridgestone Battlax Hypersport S22 tires"},{"field_group":"verification","url":"https://www.1000ps.com/en-us/model/203/kawasaki-ninja-zx-6r/2019","what":"VERIFIER 2026-07-19: 130 PS @ 13,500 rpm, 70.8 Nm @ 11,000 rpm, 196 kg, 180/55-17 rear (independent corroboration of engine claims)"}],"retrieved":"2026-07-19"},{"slug":"suzuki-gsx-8r-2024","make":"Suzuki","model":"GSX-8R","years":"2024-2026","category":"twin","engine":{"redline_rpm":9500,"peak_power_hp":81.8,"peak_power_rpm":8500,"peak_torque_nm":78.0,"peak_torque_rpm":6800},"drivetrain":{"primary_ratio":1.675,"primary_teeth":"62/37","gear_ratios":[3.071,2.2,1.7,1.416,1.23,1.107],"gear_teeth":["43/14","33/15","34/20","34/24","32/26","31/28"],"stock_front":17,"stock_rear":47,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":205,"notes":["Drivetrain figures are Suzuki's own, from the official GSX800F/GSX-8R Owner's Manual (part 99011-25LA1-01A, Suzuki Australia PDF), which covers the GSX-8S/GSX-8R family; curb mass listed there is 202 kg for GSX-8S and 205 kg for GSX-8R.","Suzuki publishes ratios truncated, not rounded, to 3 decimals: computed from teeth, primary 62/37=1.676, 4th 34/24=1.417, 5th 32/26=1.231, final 47/17=2.765. Manual-published values retained in fields; teeth pairs recorded alongside.","Final reduction ratio 2.764 (47/17): 17T front sprocket, 47T rear sprocket; drive chain RK 525SMOZ8, 118 links (US spec pages list '525 x 118L').","Peak power is the manufacturer claim of 82.9 PS (61 kW) at 8,500 rpm, converted to 81.8 hp (SAE); RevZilla and Bennetts both quote 81.8 hp/bhp @ 8,500 rpm. Peak torque claim 78 Nm (57.5 lb-ft) @ 6,800 rpm. US Suzuki site does not publish power figures.","Redline 9,500 rpm is Suzuki's own figure: official US brochure describes the TFT tachometer 'all the way up to the 9,500 RPM redline'. Rider Magazine describes the rev limiter as 'just shy of 10,000 rpm', i.e. cutoff sits slightly above the marked redline.","Gearing unchanged 2024-2026 (model carried over; 2026 US model page still lists identical drivetrain summary).","Curb (wet) mass 205 kg / 452 lb per Suzuki US spec page, Global Suzuki product page, and owner's manual.","Independently verified 2026-07-19: owner's manual PDF re-downloaded and spec table re-extracted; all ratios/teeth/sprockets/chain match digit-for-digit. Cycle News spec box lists '91 hp' \u2014 outlier contradicted by manufacturer claim (82.9 PS) and all other secondaries; disregarded."],"sources":[{"field_group":"drivetrain","url":"https://suzukimotorcycles.com.au/wp-content/uploads/2024/07/GSX800F-GSX-8R-Owners-Manual-99011-25LA1-01A.pdf","what":"Official Suzuki owner's manual (GSX800F/GSX-8R): primary reduction 1.675 (62/37); gear ratios 3.071 (43/14), 2.200 (33/15), 1.700 (34/20), 1.416 (34/24), 1.230 (32/26), 1.107 (31/28); final reduction 2.764 (47/17); RK 525SMOZ8 118-link chain; curb mass 205 kg (GSX-8R); tires 120/70ZR17 / 180/55ZR17"},{"field_group":"drivetrain","url":"https://suzukicycles.com/street/2024/gsx-8r","what":"Suzuki USA 2024 GSX-8R spec page: 6-speed constant mesh, O-ring drive chain 525 x 118L, curb weight 205 kg (452 lb), rear tire 180/55ZR17M/C (73W)"},{"field_group":"engine","url":"https://suzukicycles.com/-/media/project/cycles/files/product-brochures/2025/street/2025sportbikegsx8rosr11.pdf","what":"Official Suzuki USA GSX-8R brochure: tachometer 'up to the 9,500 RPM redline' (shift-light range 4,000-9,500 rpm); 776cc; 525 x 118L chain"},{"field_group":"engine","url":"https://bikes.suzuki.co.uk/bikes/sport/gsx-8r/","what":"Suzuki UK official model page: 82.9 PS power, 78 Nm torque, 776cc"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2024-suzuki-gsx-8r-first-ride-review","what":"RevZilla first ride (secondary): claimed 81.8 hp @ 8,500 rpm; 57.5 lb-ft @ 6,800 rpm"},{"field_group":"engine","url":"https://www.bennetts.co.uk/bikesocial/reviews/bikes/suzuki/gsx-8r-2024-review","what":"Bennetts BikeSocial review (secondary): max power 81.8 bhp (61 kW) @ 8,500 rpm; torque 78 Nm (57.5 lb-ft) @ 6,800 rpm"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/suzu/suzuki-gsx-8r-2024.html","what":"motorcyclespecs.co.za (secondary): 61.9 kW @ 8,500 rpm; 78 Nm @ 6,800 rpm; wet weight 205 kg"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/suzuki/gsx-8r/2024/","what":"MCN review (secondary, verifier-added): claimed 81.7 bhp @ 8,500 rpm, 57.6 lb-ft @ 6,800 rpm (776cc twin shared with GSX-8S); corroborates power/torque rpm points"},{"field_group":"chassis","url":"https://www.globalsuzuki.com/motorcycle/smgs/products/2024gsx-8r/","what":"Global Suzuki product page: curb mass 205 kg (452 lb); rear tire 180/55ZR17M/C (73W); 776cc DOHC parallel twin"},{"field_group":"engine","url":"https://ridermagazine.com/2024/02/01/2024-suzuki-gsx-8r-review-first-ride/","what":"Rider Magazine first ride (secondary): factory-claim power @ 8,500 rpm, 57.5 lb-ft @ 6,800 rpm; notes redline/limiter 'just shy of 10,000 rpm'"}],"retrieved":"2026-07-19"},{"slug":"suzuki-gsx-r1000-2017","make":"Suzuki","model":"GSX-R1000 / GSX-R1000R","years":"2017-2025","category":"superbike","engine":{"redline_rpm":14500,"peak_power_hp":199.2,"peak_power_rpm":13200,"peak_torque_nm":117.6,"peak_torque_rpm":10800},"drivetrain":{"primary_ratio":1.652,"primary_teeth":"76/46","gear_ratios":[2.562,2.052,1.714,1.5,1.36,1.269],"gear_teeth":["41/16","39/19","36/21","36/24","34/25","33/26"],"stock_front":17,"stock_rear":45,"chain":"525"},"rear_tire":"190/55ZR17","wet_weight_kg":202,"notes":["L7 generation (2017 full redesign). Internal gearbox ratios carried over from the 2009-2016 model; primary raised from 1.617 (76/47) to 1.652 (76/46) and final drive from 2.470 (42/17) to 2.647 (45/17); chain downsized 530 -> 525 (Cycle World engine deep-dive; both Guhl service-manual charts show identical 1st-5th internals across generations).","Peak power is the manufacturer claim: 148.6 kW / 202 PS / 199.2 hp @ 13,200 rpm; peak torque claim 117.6 Nm @ 10,800 rpm (Suzuki Australia official spec, corroborated by Total Motorcycle press-kit reprint and press coverage). JDM homologation model is derated (190 PS / 108 Nm).","Redline: Global Suzuki's own product page states a 14,500 rpm redline, and Suzuki press material states maximum revs were raised 1,000 rpm from 13,500 to 14,500 (Cycle World). The Guhl Motors 2017-19 gear chart notes the actual stock rev limiter at 14,300 rpm (their 2009-16 chart shows 13,500).","Gear ratios published by Suzuki to 3 decimals (truncated from teeth): 41/16=2.5625 -> 2.562, 39/19=2.0526 -> 2.052, 36/21=1.7143 -> 1.714, 36/24=1.500, 34/25=1.360, 33/26=1.2692 -> 1.269. Tooth pairs are written driven/drive. Pairs sourced from service-manual-derived secondary sources (Guhl chart ratios match all pairs exactly; Cycle World/forum reprints list the pairs); Suzuki's own consumer spec pages publish only primary and final teeth.","6th gear 1.269 is not tabulated in the Guhl chart (1st-5th only); it is confirmed by the Bikebros catalog listing (1-6: 2.562/2.052/1.714/1.500/1.360/1.269) and by the 33/26 tooth pair.","Wet (curb) mass by variant: GSX-R1000 non-ABS 200 kg, GSX-R1000A (ABS) 202 kg, GSX-R1000R 203 kg. 202 kg recorded (standard model as listed on Global Suzuki).","Rear tire 190/55ZR17M/C (75W) on both GSX-R1000 and GSX-R1000R (Global Suzuki, Suzuki Japan lineup page, 2017 press-kit reprint, Wikipedia, motorcycle.com OEM fitment Bridgestone RS10). Recorded exactly as 190/55ZR17. Known conflict: Suzuki Australia's 2025 GSX-R1000R page prints rear '190/50ZR17M/C (73W)' - that is the 2009-2016 fitment and is contradicted by two other official Suzuki sites plus the launch press kit; treated as an AU-site error (that page is cited here only for engine figures, which are correct).","The heavily revised 2026/2027 GSX-R1000R retains the same primary, gear, and final ratios per Suzuki Japan's official spec page (variant rrrm7) and the Bikebros catalog; years recorded as 2017-2025 for the pre-update L7 generation.","Discarded sources: ultimatespecs.com and bikez.com pages labeled '2017' carry stale 2009-2016-generation figures (185 hp @ 11,500 rpm, 190/50 tire) and were not used."],"sources":[{"field_group":"drivetrain","url":"https://www.globalsuzuki.com/motorcycle/smgs/products/2024gsx-r1000/","what":"Suzuki official (Global): primary 1.652 (76/46), final 2.647 (45/17), 525 chain, curb mass 202 kg, rear tire 190/55ZR17M/C (75W), 14,500 rpm redline stated on page, 999.8 cc"},{"field_group":"drivetrain","url":"https://www.cycleworld.com/sport-rider/inside-2017-suzuki-gsx-r1000-part-2-engine/","what":"Cycle World 2017 engine deep-dive: primary 1.617->1.652 (76/46), final 2.470->2.647 (45/17), 530->525 chain, 199 hp @ 13,200 rpm claim, revs raised 13,500->14,500 rpm"},{"field_group":"drivetrain","url":"https://www.bikebros.co.jp/catalog/3/28_5/","what":"Bikebros JP catalog (GSX-R1000R): gear ratios 1-6 = 2.562/2.052/1.714/1.500/1.360/1.269, primary 1.652, final 2.647"},{"field_group":"drivetrain","url":"https://guhlmotors.com/wp-content/uploads/2021/02/GearChart2017-19GSXR1000.pdf","what":"Guhl Motors 2017-19 gear chart (service-manual data): primary 1.652, gears 1-5 = 2.562/2.052/1.714/1.500/1.360, stock rev limit 14,300 rpm noted"},{"field_group":"drivetrain","url":"https://guhlmotors.com/wp-content/uploads/2023/04/GearChart2009-16GSXR1000.pdf","what":"Guhl Motors 2009-16 chart: identical internals 2.562/2.052/1.714/1.500/1.360 with primary 1.617 - confirms carried-over gearbox"},{"field_group":"drivetrain","url":"https://en.wikipedia.org/wiki/Suzuki_GSX-R1000","what":"L7 table: 525 chain 120 links, 17T/45T sprockets, 190/55ZR17 75W rear"},{"field_group":"drivetrain","url":"https://servicemanualsgsxr.com/sportbike/sportbike-suzuki-gsx-r/sportbike-suzuki-gsx-r-1000/suzuki-gsx-r-1000-2017-specifications/","what":"2017 factory spec-sheet reprint: primary 1.652 (76/46), final 2.647 (45/17), rear 190/55ZR17M/C (75W), curb mass 200/202/203 kg by variant"},{"field_group":"engine","url":"https://suzukimotorcycles.com.au/range/road/gsx-r1000r/","what":"Suzuki Australia official (2025 model page): 148.6 kW (202 PS) @ 13,200 rpm, 117.6 Nm @ 10,800 rpm, curb 202/203 kg. Caution: its tyre row prints 190/50ZR17 (73W), a stale 2009-2016 figure - do not use this page for tires"},{"field_group":"engine","url":"https://www.totalmotorcycle.com/motorcycles/2017/2017-Suzuki-GSX-R1000","what":"Press-kit reprint: 148.60 kW @ 13,200 rpm (202.04 PS), 117.60 Nm @ 10,800 rpm, 525 chain, 45/17, 202 kg"},{"field_group":"engine","url":"https://www.cyclenews.com/2017/04/article/2017-suzuki-gsx-r1000-first-test/","what":"Press coverage corroborating 14,500 rpm redline (rev limit raised 1,000 rpm)"},{"field_group":"chassis","url":"https://www.philharmonicmoto.com/product/suzuki-gsx-r1000-2017/","what":"Corroboration: 199 hp @ 13,200, 117 Nm @ 10,800, 202 kg wet, 190/55-17 rear, years 2017-2025"},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/suzuki/sport/2017/gsx-r/1000/detail.html","what":"OEM fitment Bridgestone RS10 190/55ZR17 rear, wet weight 441 lb / 200 kg (non-ABS base)"},{"field_group":"drivetrain","url":"https://www1.suzuki.co.jp/motor/lineup/gsxr1000rrrm7/?page=style","what":"Verifier: Suzuki Japan official spec table (GSX-R1000R rrrm7): gear ratios 1-6 = 2.562/2.052/1.714/1.500/1.360/1.269, primary 1.652, final 2.647, rear 190/55ZR17M/C (75W), 203 kg; JDM derated 140 kW (190 PS) @ 13,200 rpm, 108 Nm @ 11,000 rpm - manufacturer confirmation of all six ratios incl. 6th 1.269"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/suzu/Suzuki_GSX-R_1000_17.html","what":"Verifier: 148.6 kW / 199.2 hp @ 13,200 rpm, 117.6 Nm @ 10,800 rpm, RK525GSH chain, 45/17, rear 190/55ZR17"}],"retrieved":"2026-07-19"},{"slug":"suzuki-gsx-r600-2011","make":"Suzuki","model":"GSX-R600","years":"2011-2026","category":"supersport-600","engine":{"redline_rpm":15500,"peak_power_hp":124,"peak_power_rpm":13500,"peak_torque_nm":69.6,"peak_torque_rpm":11500},"drivetrain":{"primary_ratio":1.974,"primary_teeth":"77/39","gear_ratios":[2.687,2.105,1.761,1.521,1.347,1.23],"gear_teeth":["43/16","40/19","37/21","35/23","31/23","32/26"],"stock_front":16,"stock_rear":43,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":187,"notes":["Generation: L1 platform introduced for 2011; sold essentially unchanged through the 2026 model year in the US (Suzuki's official 2026 spec sheet lists identical chain/tires/curb mass). Guhl Motors lists identical gearing for 2011-2019 and OEM sprocket kits cover 2011-2025+.","Suzuki publishes ratios truncated to 3 decimals; all tooth pairs arithmetically reproduce the published ratios (e.g. 32/26 = 1.2307 -> 1.230, 43/16 = 2.6875 -> 2.687).","1st gear (2.687, 43/16) and the final reduction (2.687, 43/16) are coincidentally identical tooth counts per the L1 service-manual data; the value 2.687 for 1st gear is independently confirmed by the Guhl Motors gear chart. Pattern matches the sister 2011 GSX-R750, whose 1st gear is 41/16 (same 16T pinion).","2011 gearbox differs from 2006-2010 (2.785/2.052/1.714/1.500/1.347/1.208): Suzuki press materials state a taller 1st and tighter 2nd/3rd/4th/6th; only 5th (1.347, 31/23) carried over. Do not mix the two sets.","Power/torque are manufacturer claims from the factory spec sheet: 92.5 kW (124 hp) @ 13,500 rpm and 69.6 Nm @ 11,500 rpm. Some sources (Wikipedia, motorcyclespecs.co.za) instead quote 125 hp (93.2 kW) and 67.7 Nm as 'with maximum RAM air' figures; the 92.5 kW / 69.6 Nm claim is used here (4 corroborating sources incl. Suzuki Australia press launch coverage).","redline_rpm is the stock rev limit: Guhl Motors lists 'Stock Rev Limit: 15500 RPM' and Suzuki 2011 press materials (via Visordown and CycleOnline launch coverage) state the engine revs to 15,500 rpm.","Stock final drive: 16T front / 43T rear (2.687), RK525SMOZ8 chain, 114 links (Suzuki official spec sheet).","gearingcommander.com was not consulted (licensing).","VERIFIED 2026-07-19 (independent re-derivation): Suzuki official 2026 spec page re-confirmed chain (RK525SMOZ8, 114 links), rear tire 180/55ZR17M/C (73W), curb mass 187 kg; Guhl 2011-2019 chart re-confirmed rev limit 15,500, primary 1.974 and gears 1-5 digit-for-digit; motorcyclespecs.co.za re-confirmed all six ratios to 2 decimals incl. 6th 1.23; Sprocket Center fitment data re-confirmed 16/43 stock sprockets and 525 x 114 chain; bikez re-confirmed 124 hp @ 13,500 and 69.6 Nm @ 11,500. All seven tooth pairs exactly reproduce the published truncated ratios (77/39=1.974, 43/16=2.687, 40/19=2.105, 37/21=1.761, 35/23=1.521, 31/23=1.347, 32/26=1.230). Caveat: internal gear tooth pairs and primary teeth trace to the L1 service-manual table via one accessible secondary quote (JustAnswer, whose table is also reproduced verbatim in search-engine indexes); OEM parts fiches (Partzilla, CMSNL, RevZilla, Ron Ayers, Babbitts, Megazip) were bot-blocked during verification, so the tooth pairs could not be double-sourced directly. The ratio values themselves, which drive all downstream math, are multiply corroborated."],"sources":[{"field_group":"drivetrain","url":"https://guhlmotors.com/wp-content/uploads/2022/09/GearChart-2011-2019-GSXR600-1.pdf","what":"Guhl Motors gear chart 2011-2019 GSX-R600: stock rev limit 15,500 rpm; primary 1.974; gear ratios 1-5 = 2.687 / 2.105 / 1.761 / 1.521 / 1.347 (chart omits 6th)."},{"field_group":"drivetrain","url":"https://www.justanswer.com/motorcycle/7tf9u-gear-ratios-2011-gsxr-600-primary-gear.html","what":"Quotes 2011 GSX-R600 service-manual drivetrain table: primary 1.974 (77/39); final 2.687 (43/16); 1st 2.687 (43/16), 2nd 2.105 (40/19), 3rd 1.761 (37/21), 4th 1.521 (35/23), 5th 1.347 (31/23), 6th 1.230 (32/26)."},{"field_group":"drivetrain","url":"https://www.motorcyclespecs.co.za/model/suzu/suzuki_gsxR600%2011.htm","what":"Independent corroboration of full 6-speed set rounded to 2 decimals (2.69/2.11/1.76/1.52/1.35/1.23); #525 chain 114 links; 180/55ZR17 rear; 187 kg wet."},{"field_group":"drivetrain","url":"https://suzukicycles.com/sportbike/2026/gsx-r600","what":"Suzuki official spec sheet (2026 model of the same generation): final drive 'Chain, RK525SMOZ8, 114 links'; rear tire 180/55ZR17M/C (73W); curb mass 187 kg (412 lb)."},{"field_group":"drivetrain","url":"https://www.sportbiketrackgear.com/rk-driven-suzuki-gsx-r600-11-17-oem-replacement-chain-and-sprocket-kit/","what":"OEM-replacement kit for GSX-R600 2011+: 16T front, 43T rear, RK 525 chain \u2014 corroborates stock sprockets."},{"field_group":"engine","url":"https://www.suzukicycles.org/GSX-R-series/GSX-R600_2011-2022.shtml","what":"Factory-data model history: 124 hp (92.5 kW) @ 13,500 rpm; 69.60 Nm (7.1 kg-m) @ 11,500 rpm; curb 187 kg."},{"field_group":"engine","url":"https://www.cycleonline.com.au/2011/05/18/launch-test-2011-suzuki-gsx-r600/","what":"Suzuki Australia press launch coverage: claimed output 92.5 kW, 69.6 Nm, engine revs to 15,500 rpm."},{"field_group":"engine","url":"https://www.ultimatespecs.com/motorcycles-specs/suzuki/suzuki-gsx-r600-2011","what":"124.04 hp @ 13,500 rpm; 69.60 Nm @ 11,500 rpm; chain RK525SMOZ8 114 links; 187 kg curb."},{"field_group":"engine","url":"https://www.visordown.com/features/general/2011-suzuki-gsx-r600-tech-spec","what":"2011 press tech feature: engine revs to 15,500 rpm (highest of production Suzukis at launch)."},{"field_group":"chassis","url":"https://www.motorcyclenews.com/bike-reviews/suzuki/gsx-r600/2011/","what":"MCN spec table: 51.4 lb-ft (=69.7 Nm) torque; 187 kg; 180/55x17 rear tire."},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1390487-GSXR-600-2011-2023.html","what":"VERIFIER 2026-07-19 \u2014 Sprocket Center fitment page (GSXR 600 2011-2025): stock front sprocket 16, stock rear 43, chain '114 links/ 525 pitch'. Independent corroboration of stock final drive."},{"field_group":"engine","url":"https://bikez.com/motorcycles/suzuki_gsx-r600_2011.php","what":"VERIFIER 2026-07-19 \u2014 Bikez 2011 GSX-R600: 124.0 HP @ 13,500 rpm; 69.6 Nm (7.1 kgf-m) @ 11,500 rpm; RK525SMOZ8 114-link chain; 187.0 kg incl. fluids; 180/55-ZR17 rear. (Bikez's 90.5 kW is a bad hp-to-kW conversion; the hp/Nm/rpm figures corroborate.)"},{"field_group":"drivetrain","url":"https://guhlmotors.com/wp-content/uploads/2022/09/GearChart-2006-2010-GSXR600-1.pdf","what":"VERIFIER 2026-07-19 \u2014 Guhl 2006-2010 GSX-R600 chart: rev limit 15,500; primary 1.974; gears 1-5 = 2.785/2.052/1.714/1.500/1.347. Confirms only 5th (1.347) is shared with the 2011 box, matching Suzuki's press statement (Visordown) that every gear except 5th got new ratios for 2011."}],"retrieved":"2026-07-19"},{"slug":"suzuki-gsx-r750-2011","make":"Suzuki","model":"GSX-R750","years":"2011-2025","category":"supersport-600","engine":{"redline_rpm":13750,"peak_power_hp":148,"peak_power_rpm":12800,"peak_torque_nm":86.3,"peak_torque_rpm":11200,"redline_estimated":true},"drivetrain":{"primary_ratio":1.761,"primary_teeth":"74/42","gear_ratios":[2.785,2.052,1.714,1.5,1.347,1.208],"gear_teeth":["39/14","39/19","36/21","36/24","31/23","29/24"],"stock_front":17,"stock_rear":45,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":190,"notes":["Generation: L1 (2011) redesign; sold essentially unchanged through 2025 (a 2026 model is still listed on suzukicycles.com). Gearing identical across 2011-2025 -- aftermarket OEM-replacement chain/sprocket kits are catalogued as '11-25' with 17/45/525.","redline_rpm set null: no manufacturer or corroborated secondary source states a redline for the 2011+ generation. Wikipedia's 14,500 rpm figure applies to the 2004 K4, not this generation; one search summary conflated the 12,800 rpm peak-power point with redline. Not guessed.","Peak power is the manufacturer claim: 110.3 kW = 148 hp (SAE) = ~150 PS at 12,800 rpm. BikesWiki lists '150 hp @ 13,200 rpm' but applies that row to 2006+; the 13,200 rpm point matches the 2006-2010 (K6-L0) claim, while 2011-specific sources (motorcyclespecs.co.za, suzukicycles.org, MCN) agree on 148 hp @ 12,800 rpm.","Ratio provenance: gear ratios and tooth pairs are the Suzuki service-manual values as quoted verbatim in owner-forum reprints (gixxer.com, gsxr.com, JustAnswer) and corroborated to 3 decimals by BikesWiki and to 2 decimals by motorcyclespecs.co.za. Suzuki publishes TRUNCATED ratios: 39/14 computes to 2.786, 39/19 to 2.053, 31/23 to 1.348, 74/42 to 1.762 when rounded to 3 decimals; published values (2.785, 2.052, 1.347, 1.761) are retained here as the manufacturer-stated figures.","Final reduction 2.647 (45/17); stock chain is RK525ROZ5Y, 116 links (525 pitch).","Rear tire per official Suzuki spec: 180/55ZR17M/C (73W), tubeless. Curb (wet) mass 190 kg per official Suzuki spec.","Category note: the GSX-R750 sits between classes; bucketed as supersport-600 because it shares the GSX-R600 chassis and middleweight-class gearing behavior, but it makes ~148 hp (claimed).","gearingcommander.com was not consulted.","Redline is not published by the manufacturer; the chart ceiling is an estimate (claimed power peak + 8%)."],"sources":[{"field_group":"drivetrain","url":"https://bikeswiki.com/Suzuki_GSX-R750","what":"Primary reduction 1.761, final reduction 2.647, gear ratios 2.785/2.052/1.714/1.500/1.347/1.208 for the 2006+/2011+ models; curb weight 190 kg; rear tire 180/55-17"},{"field_group":"drivetrain","url":"https://www.motorcyclespecs.co.za/model/suzu/suzuki_gsxr750%2011.htm","what":"2011 GSX-R750: gear ratios 2.79/2.05/1.71/1.50/1.35/1.20, chain RK525ROZ5Y 116 links, 148 hp @ 12,800 rpm, 86.3 Nm @ 11,200 rpm, wet 190 kg, rear 180/55ZR17"},{"field_group":"drivetrain","url":"https://www.gixxer.com/threads/gear-ratios-2011-750.308283/","what":"Service-manual quote for 2011 GSX-R750: primary 1.761 (74/42), gears 2.785 (39/14), 2.052 (39/19), 1.714 (36/21), 1.500 (36/24), 1.347 (31/23), 1.208 (29/24), final 2.647 (45/17); tooth counts surfaced via search excerpt, page itself is paywalled (tollbit)"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1390497-street-suzuki-gsxr-750-2011-2025.html","what":"OEM replacement gearing for GSX-R750 2011-2025: 17T front / 45T rear / 525 chain (corroborated by sportbiketrackgear.com RK/Driven '11-25 OEM kit and NICHE 17/45 525 kit on Amazon)"},{"field_group":"engine","url":"https://www.suzukicycles.org/GSX-R-series/GSX-R750_f.shtml","what":"2011-2019 GSX-R750: 148 hp @ 12,800 rpm; 86.2 Nm @ 11,200 rpm; curb 190 kg"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/suzuki/gsx-r750/2011/","what":"MCN spec table 2011-2018: max power 148 bhp, max torque 64 ft-lb, kerb weight 190 kg, rear tyre 180/55-17"},{"field_group":"chassis","url":"https://www.globalsuzuki.com/motorcycle/smgs/products/2023gsx-r750/","what":"Official Suzuki global page (same L1-generation spec as 2011): curb mass 190 kg (419 lbs); rear tire 180/55ZR17M/C (73W), tubeless; 6-speed constant mesh"},{"field_group":"chassis","url":"https://servicemanualsgsxr.com/sportbike/sportbike-suzuki-gsx-r/sportbike-suzuki-gsx-r-750/suzuki-gsx-r750-2011-specifications/","what":"2011 GSX-R750: rear tire 180/55ZR17M/C (73W) tubeless; curb weight 190 kg (419 lbs)"},{"field_group":"drivetrain","url":"https://www.scribd.com/document/963234828/gsxr750-2011-3","what":"VERIFIER: 2011 GSX-R750 service-manual specification excerpt confirming primary 1.761 (74/42), Low 2.785 (39/14), 2nd 2.052 (39/19), 3rd 1.714 (36/21), 4th 1.500 (36/24), 5th 1.347 (31/23), Top 1.208 (29/24), final 2.647 (45/17) -- independent match of all tooth pairs and ratios"},{"field_group":"engine","url":"https://bikez.com/motorcycles/suzuki_gsx-r750_2011.php","what":"VERIFIER: 148 hp @ 12,800 rpm; 86.3 Nm @ 11,200 rpm; RK525ROZ5Y 116-link chain; 190 kg incl. fluids; 180/55-ZR17 (bikez's 108.0 kW is its own bad hp->kW conversion; hp/rpm figures match)"},{"field_group":"drivetrain","url":"https://www.sportbiketrackgear.com/rk-driven-suzuki-gsx-r750-11-17-oem-replacement-chain-and-sprocket-kit/","what":"VERIFIER: RK/Driven OEM-replacement kit for GSX-R750 2011+ = 17T front / 45T rear / 525 chain, corroborating stock sprockets"}],"retrieved":"2026-07-19"},{"slug":"suzuki-sv650-2017","make":"Suzuki","model":"SV650","years":"2017-2024","category":"twin","engine":{"redline_rpm":10000,"peak_power_hp":75,"peak_power_rpm":8500,"peak_torque_nm":64,"peak_torque_rpm":8100},"drivetrain":{"primary_ratio":2.088,"primary_teeth":"71/34","gear_ratios":[2.461,1.777,1.38,1.125,0.961,0.851],"gear_teeth":["32/13","32/18","29/21","27/24","25/26","23/27"],"stock_front":15,"stock_rear":46,"chain":"520"},"rear_tire":"160/60ZR17","wet_weight_kg":195,"notes":["Third-generation SV650 (US model years 2017+; launched in Europe as MY2016). Suzuki's published drivetrain (primary 2.088, gears, final 3.066) is unchanged across 2016-2024, so these figures apply to the whole generation.","Gear ratios are Suzuki's published (truncated) values; tooth pairs from the factory service manual reproduce them exactly (e.g. 32/13 = 2.4615 -> 2.461, 46/15 = 3.0666 -> 3.066). The gearbox internal ratios are unchanged from the 1999+ SV650; only the final drive differs (gen 3 uses 46T rear vs 45T on 1999-2014 SV650).","Final reduction 3.066 (46/15) confirmed on Suzuki's official global spec page (SV650X shares the drivetrain). Stock sprockets 15/46 with 520-pitch, 112-link chain (OEM DID520 per service manual and sprocket vendors). Some press-kit reprints list 'DID525V8' - that pitch belongs to the 1999-2002 model and is an error for this generation.","Power/torque are manufacturer claims: EU press figures 56.0 kW (75 hp) @ 8500 rpm and 64.0 Nm @ 8100 rpm; Japanese catalog lists the same as 76.1 PS @ 8500 rpm and 6.5 kgf-m (63.7 Nm) @ 8100 rpm. Independent dynos read ~71-73 hp at the wheel.","Redline 10,000 rpm is the tachometer redline reported by two independent press reviews; Suzuki does not publish a redline figure and the hard rev limiter cuts slightly above it.","Wet weight 195 kg is Suzuki's claimed curb mass for the 2017 US non-ABS SV650; ABS model is 197 kg (JP catalog 196 kg, SV650X 198 kg)."],"sources":[{"field_group":"drivetrain+engine+chassis","url":"https://d14zk5dyn3jy6u.cloudfront.net/assets/features/_2017/standard/2017_sv650_sv650_abs_features.pdf","what":"Suzuki Motor of America official 2017 SV650/SV650A Features & Specifications PDF (verifier-added, spec tables read from embedded page images): primary 2.088 (71/34); gears 2.461 (32/13), 1.777 (32/18), 1.380 (29/21), 1.125 (27/24), 0.961 (25/26), 0.851 (23/27); final 3.066 (46/15); drive chain DID520V0 112 links; rear tire 160/60ZR17M/C (69W); curb mass 195 kg (430 lbs) SV650 / 197 kg (434 lbs) SV650A. Confirms every drivetrain digit and the 520 (not 525) chain."},{"field_group":"drivetrain","url":"https://www.globalsuzuki.com/motorcycle/smgs/products/2021sv650x/","what":"Official Global Suzuki spec page (SV650X, same drivetrain): primary reduction 2.088 (71/34), final reduction 3.066 (46/15), 6-speed constant mesh, rear tire 160/60ZR17M/C (69W)"},{"field_group":"drivetrain","url":"https://japan.webike.net/SUZUKI/SV650/648/m-spec/y2017/","what":"Japanese catalog data for 2017 SV650: per-gear ratios 2.461/1.777/1.380/1.125/0.961/0.851, primary 2.088, secondary 3.066; 76.1 PS @ 8500 rpm, 6.5 kgf-m @ 8100 rpm, curb 196 kg (JP spec)"},{"field_group":"drivetrain","url":"https://www.scribd.com/document/658757413/Suzuki-2017-2019-Sv650-Service-Manual","what":"Suzuki 2017-2019 SV650 factory service manual: gear tooth pairs 32/13, 32/18, 29/21, 27/24, 25/26, 23/27; primary 71/34; final 46/15; DID520 chain"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1390460-street-suzuki-sv-650-2016-2024.html","what":"Sprocket Center 'SV650 2016-2024 STOCK SIZES': front 15, rear 46, 112 links / 520 pitch (corroborates OEM sprockets and chain pitch)"},{"field_group":"engine","url":"https://www.totalmotorcycle.com/motorcycles/2016/2017-Suzuki-SV650/","what":"Press-kit spec reprint: 56.00 kW (75 hp) @ 8500 rpm, 64.00 Nm @ 8100 rpm; US curb weights 195 kg / 197 kg (ABS). (Its 'DID525V8' chain line is a carryover error - see notes.)"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2017-suzuki-sv650-first-ride-motorcycle-review","what":"RevZilla 2017 SV650 first ride: 'pulling strong from 5,500 rpm all the way to the 10,000 rpm redline' (redline source 1 of 2)"},{"field_group":"engine","url":"https://www.motorcycle.com/manufacturer/suzuki/2017-suzuki-sv650-first-ride-review.html","what":"Motorcycle.com 2017 SV650 first ride review, spec section: '10,000 rpm redline' (redline source 2 of 2)"},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/suzuki/standard/2017/sv/650/detail.html","what":"2017 SV650 spec sheet: wet weight 429.9 lb / 195 kg; rear tire Dunlop 160/60 ZR17 M/C 69W"}],"retrieved":"2026-07-19"},{"slug":"triumph-daytona-675r-2013","make":"Triumph","model":"Daytona 675 / 675R","years":"2013-2017","category":"supersport-600","engine":{"redline_rpm":14400,"peak_power_hp":126,"peak_power_rpm":12500,"peak_torque_nm":74,"peak_torque_rpm":11900},"drivetrain":{"primary_ratio":1.848,"primary_teeth":"85/46","gear_ratios":[2.313,1.857,1.565,1.35,1.238,1.136],"gear_teeth":["37/16","39/21","36/23","27/20","26/21","25/22"],"stock_front":15,"stock_rear":47,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":184,"notes":["Third-generation Daytona 675 (2013-2017): all-new higher-revving engine (76.0 x 49.58 mm bore/stroke, 13.1:1 CR, 14,400 rpm redline). 675 and 675R share identical engine and gearbox specs; the R adds Ohlins/Brembo chassis parts. Discontinued after MY2017 (Euro 4).","1st gear discrepancy resolved: the Triumph owner's handbook (2013+ Daytona 675/675R edition) prints '2.615:1 (16/37)', which is internally inconsistent (37/16 = 2.313). The OEM parts fiche for 2013 Daytona 675 (from VIN 564948) shows input shaft with integral 16T 1st pinion (T1180094) and 37T output 1st gear (T1189001), i.e. 2.313:1; Nova Racing's 'Triumph standard gearset' also lists 1st 2.313:1 (16-37). 2.615:1 (13/34) was the 2006-2008 gearset only. Recorded 2.313 = 37/16 computed to 3 decimals.","Gear ratios 2nd-6th recorded from the owner's handbook, which prints ratio and tooth pair consistently (e.g. 2nd '1.857:1 (21/39)'); tooth pairs independently confirmed by the OEM transmission parts fiche tooth counts.","Primary drive: handbook prints '1.848:1 (46/85)' (driver/driven notation); recorded here as 85/46 driven/driver = 1.848.","Final drive shortened for 2013: 15/47 (3.133:1) vs 16/47 (2.938:1) on 2006-2012. OEM fitment: 15T output sprocket (T1182011), 47T rear sprocket (T2010535), 525 chain 113 links (T2018051; kit T2017270 '113/47/15').","Peak power/torque are manufacturer claims: 128.0 PS / 126.2 bhp / 94.12 kW @ 12,500 rpm and 74 Nm @ 11,900 rpm (owner's handbook spec table; 2013 press materials state 126 hp / 55 lb-ft).","Redline 14,400 rpm is from Triumph 2013 press material as reprinted by secondary sources (ultimatemotorcycling.com press-kit preview, motorcyclespecs.co.za, totalmotorcycle.com); it is not stated in the handbook spec table.","Wet weight 184 kg (405.6 lb) per owner's handbook; 2013 press preview quoted 404 lb wet.","gearingcommander.com was not used or opened, per licensing rule."],"sources":[{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/1110475/Triumph-Daytona-675.html?page=151","what":"Triumph owner's handbook (2013+ Daytona 675/675R/Street Triple edition), Specifications p.151: primary 1.848:1 (46/85), final drive 3.133:1 (15/47) Daytona, gear ratios/teeth 1st-6th (1st ratio misprinted 2.615 next to correct 16/37 teeth), RK O-ring chain. Manufacturer document."},{"field_group":"drivetrain","url":"https://oem-bike-parts.com/en/parts/triumph/2013/daytona-675-from-vin-564948-2013/transmission","what":"OEM parts fiche, 2013 Daytona 675 transmission: Gearbox Shaft Input & 1st 16T (T1180094); Output gears 1st 37T, 2nd 39T, 3rd 36T, 4th 27T, 5th 26T, 6th 25T; Input gears 2nd 21T, 3rd/4th 23T/20T, 5th 21T, 6th 22T; Output sprocket 15T (T1182011). Manufacturer parts data - settles 1st gear = 37/16 = 2.313."},{"field_group":"drivetrain","url":"https://oem-bike-parts.com/en/parts/triumph/2013/daytona-675-from-vin-564948-2013/rear-wheel-final-drive","what":"OEM parts fiche, rear wheel/final drive: Sprocket Rear 47T (T2010535), 525 chain 113L (T2018051), chain & sprocket kit 113/47/15 (T2017270). Confirms 15/47 and 525 pitch."},{"field_group":"drivetrain","url":"https://novaracing.co.uk/triumph-675-close-ratio-gearbox","what":"Nova Racing Triumph 675 standard gearset table: 1st 2.313 (16-37), 2nd 1.857 (21-39), 3rd 1.565 (23-36), 4th 1.350 (20-27), 5th 1.238 (21-26), 6th 1.136 (22-25). Independent corroboration of internal ratios."},{"field_group":"engine","url":"https://www.manualslib.com/manual/1110475/Triumph-Daytona-675.html?page=148","what":"Owner's handbook Specifications p.147-148: bore/stroke 76 x 49.58 mm, 674.8 cc, CR 13.10:1, max power 126.2 bhp (128.0 PS / 94.12 kW) @ 12,500 rpm, max torque 74 Nm @ 11,900 rpm, wet weight 184 kg. Manufacturer claims."},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2012/11/21/2013-triumph-daytona-675-675-r-preview/","what":"2013 press-kit preview: 126 hp @ 12,500 rpm, 55 ft-lbs @ 11,900 rpm, 14,400 rpm redline, wet 404 lb. Secondary source for redline."},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/triu/triumph_daytona_675%2013.htm","what":"2013 Daytona 675: 126 hp @ 12,500, 74 Nm @ 11,900, '14,400rpm red line', wet 184 kg, rear tyre 180/55 ZR 17. Second secondary source for redline/weight/tire."},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/triumph/sport/2013/daytona/675r/detail.html","what":"2013 Daytona 675R: wet weight 405 lb / 184 kg, rear tire 180/55 ZR 17. Corroboration."},{"field_group":"chassis","url":"https://www.totalmotorcycle.com/motorcycles/2013models/2013-Triumph-Daytona675R","what":"2013 Daytona 675R press-kit reprint: redline 14,400 rpm, 128 PS/126 bhp @ 12,500, 74 Nm @ 11,900, wet 184 kg (405 lb), rear 180/55 ZR 17."},{"field_group":"drivetrain","url":"https://triumphparts.englemotors.com/p/Triumph_2012_Tiger/Gearbox-Shaft--Input-amp-1st--16t/43479228/T1180094.html","what":"Verification (2026-07-19): independent Triumph dealer catalog listing for T1180094 titled 'Gearbox Shaft, Input & 1st, 16t' - third confirmation that the 2013+ 675 input shaft's integral 1st pinion is 16T, i.e. 1st = 37/16 = 2.313, not the handbook's misprinted 2.615."},{"field_group":"engine","url":"https://www.ultimatespecs.com/motorcycles-specs/triumph/triumph-daytona-675-r-2013","what":"Verification (2026-07-19): 2013 Daytona 675 R - 128.00 HP @ 12500 rpm, 74.00 Nm (54.6 ft.lbs) @ 11900 rpm, curb weight 184.0 kg (405.7 lb), rear tire 180/55-ZR17, O-ring chain. Additional secondary corroboration for claimed peaks, wet weight, tire."},{"field_group":"verification","url":"https://www.manualslib.com/manual/1110475/Triumph-Daytona-675.html?page=147","what":"Verification (2026-07-19): independently re-fetched handbook pp.147/148/151/152 - p.147 'Wet Weight 405.6 lb (184 kg)', p.148 '126.2 bhp (128.0 PS/94.12 kW) at 12,500 rpm' and '54.6 ft.lbf (74 Nm) at 11,900 rpm', p.151 primary '1.848:1 (46/85)', final '3.133:1 (15/47)', gears 2nd-6th ratios/teeth as recorded (1st printed '2.615:1 (16/37)', internally inconsistent, overruled by OEM fiche tooth counts), p.152 rear tyre '180/55 ZR 17'. Also re-fetched OEM fiche transmission + rear-wheel pages (37T/39T/36T/27T/26T/25T outputs, 21T/23T-20T/21T/22T inputs, 15T output sprocket T1182011, 47T rear T2010535, 525 chain 113L T2018051) and Nova Racing standard gearset table. All data fields confirmed digit-for-digit; only fix was a rounding typo in a historical note (2006-2012 final drive 47/16 = 2.9375 -> 2.938, was printed 2.937)."}],"retrieved":"2026-07-19"},{"slug":"triumph-street-triple-765rs-2023","make":"Triumph","model":"Street Triple 765 RS","years":"2023-2026","category":"naked","engine":{"redline_rpm":12650,"peak_power_hp":128.2,"peak_power_rpm":12000,"peak_torque_nm":80,"peak_torque_rpm":9500},"drivetrain":{"primary_ratio":1.854,"primary_teeth":"76/41","gear_ratios":[2.313,1.857,1.5,1.286,1.136,0.967],"gear_teeth":["37/16","39/21","36/24","27/21","25/22","29/30"],"stock_front":15,"stock_rear":48,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":188,"notes":["Gear ratios and primary ratio computed to 3 decimals from tooth pairs in the official Triumph Owner's Handbook for Street Triple R / RS / Moto2 Edition (publication 3850118-EN issue 1, (c) 07.2022, the 2023-generation handbook). Handbook prints rounded values: primary 1.85:1 (76/41); 1st 2.31 (37/16), 2nd 1.86 (39/21), 3rd 1.5 (36/24), 4th 1.29 (27/21), 5th 1.14 (25/22), 6th 0.97 (29/30); final drive 3.2:1 (48/15).","OEM final drive chain per handbook: DID 525HV3KAI, 118 links. 525 pitch corroborated by DID/RK replacement kit listings for 2023-2025 (stock 15T/48T).","Final drive changed from 16/46 (2017-2022 gen) to 15/48 for 2023 per Triumph's launch presentation (reported by Motorcycle.com and MCN).","redline_rpm 12,650 is the official 'Electronic Rev Limiter' figure printed in the Ignition table of the Triumph Owner's Handbook (publication 3850118-EN issue 1, pages 233 and 238), identical for Street Triple R, RS and Moto2 Edition. Triumph does not separately publish a tachometer red-zone start; the rev limiter is the manufacturer's only official rev-limit number. Peak power is claimed at 12,000 rpm.","Power/torque are manufacturer claims: 130 PS / 128.2 bhp (95.6 kW) @ 12,000 rpm and 80 Nm @ 9,500 rpm (Triumph spec page and press kit).","Wet weight 188 kg and rear tyre 180/55 ZR17 (73W) per Triumph spec page; handbook confirms tyre size.","Generation years: launched as MY2023; platform and drivetrain unchanged through MY2026 (2026 RX Special Edition and Moto2 Limited Edition are based on the same RS platform per Cycle News/Cycle World). Recorded as 2023-2026, current as of retrieval date.","Independent verification 2026-07-19: downloaded the cited handbook PDF (3850118-EN issue 1, (c) 07.2022, 249 pp) and re-read the Specifications chapter (pp. 232-235 R/RS, 237-239 Moto2). All tooth pairs, computed ratios, final drive 3.2:1 (48/15), chain DID 525HV3KAI 118 links, and rear tyre 180/55 ZR17 73W match exactly. Power/torque/weight/tyre re-confirmed against Triumph's live 2026 spec page (130 PS / 128 hp @ 12,000; 59 ft-lb @ 9,500; 414 lb / 188 kg; 180/55 ZR 17) and the official 2023 press kit (128.2 bhp, 80 Nm). One correction: redline_rpm changed from null to 12,650 - the handbook's Ignition spec table explicitly lists 'Electronic Rev Limiter 12,650 rpm', contradicting the earlier note that no official figure exists."],"sources":[{"field_group":"drivetrain","url":"https://korlas.com.tr/wp-content/uploads/2024/05/TRIUMPH_2024_STREET_TRIPLE_R-RS-MOTO2_ENG.pdf","what":"Official Triumph Owner's Handbook (publication 3850118-EN issue 1) for Street Triple R/RS/Moto2 Edition, hosted by Korlas (Triumph Turkey distributor): primary 1.85:1 (76/41), gear ratios 1st-6th with tooth pairs, final drive 3.2:1 (48/15), chain DID 525HV3KAI 118 links, rear tyre 180/55 ZR17 73W, compression 13.25:1 confirming 2023-gen"},{"field_group":"drivetrain","url":"https://www.motorcycle.com/manufacturer/triumph/triumph-announce-new-street-triple-lineup-for-2023.html","what":"Press coverage of Triumph 2023 launch: all six internal ratios revised, final drive changed from 16/46 to 15/48"},{"field_group":"drivetrain","url":"https://www.kitdecadena.com/en/products/did-chain-sprocket-kits/sprocket-kit-did-Triumph/street-triple-765-rs/triumph-street-triple-765-rs-23-24-reinforced-chain-kit","what":"DID chain/sprocket kit listing for 2023-24 Street Triple 765 RS: stock sizes 15T front, 48T rear, 525 pitch"},{"field_group":"engine","url":"https://www.triumphmotorcycles.com/motorcycles/roadsters/street-triple-765/street-triple-765-rs-2023","what":"Official Triumph spec page: 130 PS / 128 hp (95.6 kW) @ 12,000 rpm, 59 ft-lb (80 Nm) @ 9,500 rpm, 188 kg wet, 180/55 ZR 17 rear"},{"field_group":"engine","url":"https://triumph-mediakits.com/en/news-articles/the-new-2023-street-triple-765-range-race-powered-naked-sports-perfection.html","what":"Official Triumph 2023 press kit: 130 PS / 128.2 bhp (95.6 kW) @ 12,000 rpm, 80 Nm (59 ft-lb) @ 9,500 rpm, 188 kg wet, 180/55 ZR 17 rear"},{"field_group":"chassis","url":"https://www.mcnews.com.au/2023-triumph-street-triple-765-specifications/","what":"Press-kit reprint corroborating 128.2 bhp @ 12,000 rpm, 80 Nm @ 9,500 rpm, 188 kg wet, 180/55 ZR 17 rear"},{"field_group":"chassis","url":"https://www.motorcyclenews.com/bike-reviews/triumph/street-triple-765-rs/2023/","what":"MCN review: 128 bhp, 188 kg, 180/55x17 rear, final drive 16/46 to 15/48 change"},{"field_group":"chassis","url":"https://www.cyclenews.com/2025/11/article/2026-triumph-street-triple-765-rx-special-edition-and-moto2-first-look/","what":"2026 RX/Moto2 editions based on unchanged current RS platform - generation-year bound"},{"field_group":"engine","url":"https://korlas.com.tr/wp-content/uploads/2024/05/TRIUMPH_2024_STREET_TRIPLE_R-RS-MOTO2_ENG.pdf","what":"Verification pass 2026-07-19: same official handbook, Ignition spec table (pp. 233/238) - 'Electronic Rev Limiter 12,650 rpm' for R, RS and Moto2 Edition; source of redline_rpm=12650. Drivetrain tables re-checked digit-by-digit on this pass."},{"field_group":"engine","url":"https://www.triumphmotorcycles.com/motorcycles/roadsters/street-triple-765/specification","what":"Verification pass 2026-07-19: Triumph's live spec page (2026 site) still lists 130 PS / 128 hp (95.6 kW) @ 12,000 rpm, 59 ft-lb @ 9,500 rpm, 414 lb (188 kg) wet, 180/55 ZR 17 rear - confirms figures unchanged through MY2026"}],"retrieved":"2026-07-19"},{"slug":"yamaha-mt-07-2021","make":"Yamaha","model":"MT-07","years":"2021-2024","category":"twin","engine":{"redline_rpm":10000,"peak_power_hp":73.4,"peak_power_rpm":8750,"peak_torque_nm":67.0,"peak_torque_rpm":6500},"drivetrain":{"primary_ratio":1.925,"primary_teeth":"77/40","gear_ratios":[2.846,2.125,1.632,1.3,1.091,0.964],"gear_teeth":["37/13","34/16","31/19","26/20","24/22","27/28"],"stock_front":16,"stock_rear":43,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":184,"notes":["Generation: Euro5 second-generation MT-07 (2021-2024; new bodywork, LED projector headlight, 298mm discs). MT-07 was substantially redesigned for MY2025 (new bodywork, TFT dash, optional Y-AMT), so this record is scoped to 2021-2024.","Peak power is the manufacturer's claim of 54.0 kW (73.4 PS, metric hp) @ 8,750 rpm per the official Yamaha Motor Europe 2021 factsheet; 54.0 kW equals 72.4 SAE hp. The 73.4 figure is widely reprinted as 'hp'.","Peak torque manufacturer claim: 67.0 Nm (6.8 kg-m) @ 6,500 rpm (Yamaha EU factsheet).","Redline: tachometer red zone spans 10,000-12,000 rpm on the 2021 LCD dash (rev limiter zone begins at 10,000 rpm); corroborated by Rider Magazine and webBikeWorld 2021 coverage. Yamaha does not publish a redline figure in the spec sheet.","Gear ratios and tooth pairs are as printed in the Yamaha MT-07 2021 owner's manual (ratios given by Yamaha to 3 decimals alongside tooth counts; computed values from teeth match: 37/13=2.846, 34/16=2.125, 31/19=1.632, 26/20=1.300, 24/22=1.091, 27/28=0.964).","Secondary (final) reduction ratio: 2.688 (43/16) per owner's manual, i.e. 16T front / 43T rear sprockets; OEM-replacement kit listings (Sprocket Center, fitment 2015-2024) corroborate 16/43 with 525 chain, 108 links.","Drive chain per owner's manual: size 525, sealed (O-ring), 108 links.","Primary reduction 1.925 (77/40) confirmed in two independent reprints of the Yamaha owner's manual specifications (ManualsLib, bikesinfotech); gearbox internal ratios are unchanged from the 2014-2020 first generation.","Wet weight 184 kg (406 lb) including full oil and 14L fuel tank, manufacturer claim (Yamaha EU factsheet and 2021 owner's manual).","Stock rear tire 180/55 ZR 17 M/C (73W) tubeless (Michelin Road 5 fitted from factory per 2021 owner's manual)."],"sources":[{"field_group":"engine","url":"https://cdn2.yamaha-motor.eu/prod/product-assets/2021/MT07/Factsheets/2021-MT07_en-GB.pdf","what":"Official Yamaha Motor Europe 2021 MT-07 factsheet: 689cc, 54.0 kW (73.4 PS) @ 8,750 rpm, 67.0 Nm @ 6,500 rpm, 6-speed, chain final drive, rear tyre 180/55 ZR 17, wet weight 184 kg"},{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/3116908/Yamaha-Mt-07-2021.html?page=91","what":"Yamaha MT-07 2021 owner's manual specifications page: gear ratios 1st-6th with tooth pairs (2.846 37/13 ... 0.964 27/28), curb weight 184 kg"},{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/1161614/Yamaha-Mt07.html?page=98","what":"Yamaha MT-07 owner's manual specifications reprint: primary reduction 1.925 (77/40), secondary reduction 2.688 (43/16), constant-mesh 6-speed"},{"field_group":"drivetrain","url":"https://www.bikesinfotech.com/specifications-658.html","what":"Second independent owner's-manual specifications reprint corroborating primary 1.925 (77/40), secondary 2.688 (43/16), and all six gear ratios/teeth"},{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/1161614/Yamaha-Mt07.html?page=73","what":"Owner's manual drive-chain section: size 525, sealed, 108 links"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392966-street-yamaha-mt-07-2015-2024.html","what":"OEM-replacement fitment corroboration: MT-07 2015-2024 stock 16T/43T sprockets, 525 chain, 108 links"},{"field_group":"engine","url":"https://ridermagazine.com/2020/11/03/2021-yamaha-mt-07-first-look-review/","what":"2021 first look: LCD dash marks 10,000-12,000 rpm in red (redline corroboration #1)"},{"field_group":"engine","url":"https://www.webbikeworld.com/2021-yamaha-mt-07/","what":"2021 MT-07 overview: 'RPMs of 10k-12k are indicated with a red color' (redline corroboration #2)"},{"field_group":"chassis","url":"https://www.manualslib.com/manual/3116908/Yamaha-Mt-07-2021.html?page=92","what":"2021 owner's manual: rear tire 180/55 ZR 17 M/C (73W) Michelin Road 5 tubeless"},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/yamaha/standard/2021/mt/07/detail.html","what":"Secondary corroboration: rear 180/55 ZR17, wet weight 406 lb / 184.2 kg"},{"field_group":"engine","url":"https://www.totalmotorcycle.com/motorcycles/2021/2021-yamaha-mt07","what":"Verifier corroboration (2021 EU press-kit reprint): 54.0 kW (73.4 PS) @ 8,750 rpm, 67.0 Nm (6.8 kg-m) @ 6,500 rpm, wet weight 184 kg (EU) / 406 lb (USA), rear 180/55 ZR 17M/C (73W), constant-mesh 6-speed, chain final drive"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/i-30500335-525-chain-kit-tek5-steel-sprocket-set-with-choice-of-chain-yamaha-mt-07-15-24.html","what":"Verifier corroboration, OEM size info for MT-07 2015-2024: front 16T, rear 43T, 525 pitch, 108-link chain"}],"verified":"2026-07-19","retrieved":"2026-07-19"},{"slug":"yamaha-mt-09-2024","make":"Yamaha","model":"MT-09","years":"2024-2026","category":"naked","engine":{"redline_rpm":10500,"peak_power_hp":117.4,"peak_power_rpm":10000,"peak_torque_nm":93,"peak_torque_rpm":7000},"drivetrain":{"primary_ratio":1.681,"primary_teeth":"79/47","gear_ratios":[2.571,1.947,1.619,1.381,1.19,1.037],"gear_teeth":["36/14","37/19","34/21","29/21","25/21","28/27"],"stock_front":16,"stock_rear":45,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":193,"notes":["Generation RN87 (2024 redesign of the 890cc CP3 triple, MTN890R); specs apply to 2024-2026 model years of the manual-transmission MT-09. The Y-AMT variant (EU MY2024, US MY2025) uses the same ratios with an automated shift actuator but weighs 196 kg per Yamaha's factsheet; wet_weight_kg here is the standard 6-speed manual bike.","Gear ratios and tooth pairs taken verbatim from the official Yamaha 2024 owner's manual (BME-28199-20 / BME-28199-E0), Specifications chapter; ratios as published by Yamaha (36/14=2.571, 37/19=1.947, 34/21=1.619, 29/21=1.381, 25/21=1.190, 28/27=1.037 - computed values match to 3 decimals).","Primary reduction 1.681 (79/47) and secondary reduction 2.813 (45/16) from the 2024 service manual (ManualsLib reprint, p.50); stock_front/stock_rear are the 16/45 secondary-reduction sprockets. Stock chain 525, sealed (O-ring), 110 links (service manual p.54).","Gear ratios are unchanged from the 2021-2023 890cc MT-09 (RN69); the 2024 gearbox revision (six drive dogs) changed shift action, not ratios.","Peak power is the manufacturer claim of 87.5 kW (119.0 PS) at 10,000 rpm, converted to 117.4 hp (from 119.0 PS; conversion from 87.5 kW gives 117.3); peak torque claim 93.0 Nm (68.6 lb-ft) at 7,000 rpm. US Yamaha does not publish power figures; claim verified directly against Yamaha Motor Europe's official 2024 MT-09 factsheet PDF ('Maximum power 87,5 kW (119,0 PS) @ 10.000 rpm', 'Maximum Torque 93,0 Nm (9,5 kgf-m) @ 7.000 rpm').","Redline per official owner's manual tachometer section: 'Red zone: 10500 r/min and above'; corroborated by RevZilla review ('10,500-rpm redline').","Wet weight is Yamaha curb weight claim: 193 kg (425 lb), fully fueled; confirmed in both the official owner's manual ('Curb weight: 193 kg (425 lb)') and the EU factsheet ('Wet weight (including full oil and fuel tank) Standard 6-speed manual: 193 kg').","gearingcommander.com was not used for any field.","Independently verified 2026-07-19: gear ratios/teeth, curb weight, tires and 10,500 red zone re-extracted from two official owner's-manual PDFs (AU BME-28199-20 and EU BME-28199-E0/UBMEE0E0); primary 1.681 (79/47), secondary 2.813 (45/16), chain 525 sealed 110 links re-read from the 2024 service-manual reprint; 16/45 + 525/110 stock sizes corroborated by Sprocket Center's OEM listing; power/torque/weight verified against Yamaha EU's official factsheet PDF. All arithmetic recomputed (79/47=1.681, 36/14=2.571, 37/19=1.947, 34/21=1.619, 29/21=1.381, 25/21=1.190, 28/27=1.037, 45/16=2.813). Ratio continuity with 2021-2023 RN69 confirmed via Yamaha EU's official 2021 manual PB7N28199E0E (identical six ratios)."],"sources":[{"field_group":"drivetrain","url":"https://www.yamahacity.com.au/pub/4a02c700/editor-uploaded-file/BME-28199-20%20MT09%202024.pdf","what":"Official Yamaha 2024 MT-09 (MTN890R) owner's manual BME-28199-20, Specifications ch.11: gear ratios 1-6 with tooth counts, curb weight 193 kg, tires 120/70ZR17 / 180/55ZR17"},{"field_group":"drivetrain","url":"https://moto-nautika.com/pdf/navodila%20za%20uporabo/MT-09.pdf","what":"Official Yamaha 2024 MT-09 owner's manual EU edition BME-28199-E0 (mirror), Specifications ch.10: identical gear ratios/teeth, weight, tires; tachometer 'Red zone: 10500 r/min and above'"},{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/4219084/Yamaha-Mt-09-2024.html?page=50","what":"Yamaha MT-09 2024 service manual (reprint), engine specs: primary reduction 1.681 (79/47), secondary reduction 2.813 (45/16), gear ratios confirmed"},{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/4219084/Yamaha-Mt-09-2024.html?page=54","what":"Yamaha MT-09 2024 service manual (reprint), chassis specs: drive chain size 525, sealed type, 110 links"},{"field_group":"engine","url":"https://www.totalmotorcycle.com/motorcycles/2024/2024-yamaha-mt09","what":"Yamaha press-spec reprint: max power 87.5 kW (119.0 PS) @ 10,000 rpm (EU), max torque 93 Nm (68.6 lb-ft) @ 7,000 rpm, wet weight 425 lb/193 kg"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/yamaha/yamaha-mt-09-2024.html","what":"Independent spec database: 117.4 hp / 119 PS / 87.5 kW @ 10,000 rpm; 93 Nm @ 7,000 rpm; 193 kg wet; 180/55ZR17 rear"},{"field_group":"engine","url":"https://www.cyclenews.com/2024/06/article/2024-yamaha-mt-09-review/","what":"Cycle News 2024 MT-09 review spec sheet: 117 hp @ 10,000 rpm, 68 lb-ft @ 7,000 rpm, 425 lb wet (claimed)"},{"field_group":"engine","url":"https://www.revzilla.com/common-tread/2024-yamaha-mt-09-first-ride-review","what":"RevZilla 2024 MT-09 first ride: '10,500-rpm redline' (corroborates owner's-manual red zone)"},{"field_group":"chassis","url":"https://www.yamahamotorsports.com/models/24-mt-09/specs","what":"Yamaha USA 2024 MT-09 spec page (JS-rendered; used for MSRP/model-year existence; US page omits power and gearing)"},{"field_group":"engine","url":"https://cdn2.yamaha-motor.eu/prod/product-assets/2024/MT09/Factsheets/2024-MT09_en.pdf","what":"Official Yamaha Motor Europe 2024 MT-09 factsheet (verifier, manufacturer CDN): max power 87,5 kW (119,0 PS) @ 10.000 rpm; max torque 93,0 Nm (9,5 kgf-m) @ 7.000 rpm; wet weight manual 193 kg / Y-AMT 196 kg; tires 120/70ZR17M/C (58W) and 180/55ZR17M/C (73W)"},{"field_group":"drivetrain","url":"https://cdn2.yamaha-motor.eu/prod/owner-manuals/Motorcycles/PB7N28199E0E.PDF","what":"Official Yamaha EU 2021 MT-09 (MTN890, B7N-28199-E0) owner's manual (verifier): identical six gear ratios 2.571/1.947/1.619/1.381/1.190/1.037 with same tooth pairs, confirming ratio continuity RN69 to RN87"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392969-street-yamaha-mt-09-2021-2025.html","what":"Sprocket Center MT-09 2021-2025 fitment page (verifier, secondary): STOCK SIZES front sprocket 16, rear sprocket 45, chain 110 links / 525 pitch"}],"retrieved":"2026-07-19"},{"slug":"yamaha-yzf-r1-2015","make":"Yamaha","model":"YZF-R1","years":"2015-2024","category":"superbike","engine":{"redline_rpm":14000,"peak_power_hp":197.3,"peak_power_rpm":13500,"peak_torque_nm":112.4,"peak_torque_rpm":11500},"drivetrain":{"primary_ratio":1.634,"primary_teeth":"67/41","gear_ratios":[2.6,2.176,1.842,1.579,1.381,1.25],"gear_teeth":["39/15","37/17","35/19","30/19","29/21","30/24"],"stock_front":16,"stock_rear":41,"chain":"525"},"rear_tire":"190/55ZR17","wet_weight_kg":199,"notes":["Generation covered: 2015-2024 crossplane CP4 R1 (2CR/B3L platform). Yamaha's published primary reduction, all six gear pairs, and secondary reduction are identical across 2015-2024; ratios and tooth pairs taken verbatim from the official Yamaha YZF-R1/YZF-R1M 2020 service manual (B3L-28197-20): primary 1.634 (67/41), secondary 2.563 (41/16), gears 2.600 (39/15), 2.176 (37/17), 1.842 (35/19), 1.579 (30/19), 1.381 (29/21), 1.250 (30/24). Webike Japan's 2015-model factory spec sheet lists the same figures for the 2015 launch model.","Ratios are Yamaha's published 3-decimal values; they match the tooth pairs (e.g. 39/15 = 2.600, 41/16 = 2.5625 rounded to 2.563 by Yamaha).","Drive chain: 525 pitch, sealed, 113 links stock (service manual chassis spec).","Peak power is the manufacturer claim: 147.1 kW (200.0 PS) @ 13,500 rpm WITHOUT ram-air, per official Yamaha Europe brochure/spec sheet; recorded here as 197.3 hp (SAE conversion of 147.1 kW). Peak torque claim 112.4 Nm (11.5 kg-m) @ 11,500 rpm (2015-2019 spec); Yamaha EU lists 113.3 Nm @ 11,500 rpm for the 2020-2024 update.","redline_rpm 14,000 is the tachometer red-zone start documented in the official 2020 service manual display-settings text ('the 14000 r/min red zone'); some secondary specs list the rev limiter as ~14,500 rpm but that figure is not manufacturer-published.","wet_weight_kg 199 is the 2015-2016 launch claim (fully fuelled). Yamaha EU lists 200 kg for the 2017-2019 Euro4 spec-sheet, and the 2020 service manual lists 201 kg curb (YZF-R1) / 202 kg (YZF-R1M) for 2020-2024.","gearingcommander.com was not used or opened for any field."],"sources":[{"field_group":"drivetrain","url":"https://www.veloxracing.com/downloads/manuals/B3L-28197-20%20Yamaha%20YZF%20R1%202020%20Service%20Manual%20EU.pdf","what":"Official Yamaha YZF-R1/R1M 2020 EU service manual (B3L-28197-20), ch.2 Engine/Chassis specs: primary reduction 1.634 (67/41); gear ratios 1st 2.600 (39/15), 2nd 2.176 (37/17), 3rd 1.842 (35/19), 4th 1.579 (30/19), 5th 1.381 (29/21), 6th 1.250 (30/24); secondary reduction 2.563 (41/16); 525 chain x 113 links; tires 120/70ZR17 / 190/55ZR17M/C (75W); curb weight 201 kg (R1); 14,000 r/min red zone (features section)."},{"field_group":"drivetrain","url":"https://japan.webike.net/YAMAHA/YZF-R1/926/m-spec/y2015/","what":"Webike Japan 2015 YZF-R1 factory spec sheet: primary 67/41 (1.634), secondary 41/16 (2.563), gears 2.600/2.176/1.842/1.579/1.381/1.250, sprockets 16/41, 525 chain, 190/55ZR17M/C(75W), 199 kg, torque 11.5 kgf-m @ 11,500 \u2014 confirms 2015 launch model shares the 2020 manual's gearing."},{"field_group":"drivetrain","url":"https://motoperf.com/motorcycles/Yamaha-R1-2015-284011","what":"Secondary corroboration (2015-2016 R1): primary 1.634, gears 2.6/2.176/1.842/1.579/1.381/1.25 (site shows 1.824 typo for 3rd), final drive 2.562, 200 hp @ 13,500, 82 lb-ft @ 11,500; lists redline 14,500 (not manufacturer-published)."},{"field_group":"engine","url":"https://droomersyamaha.com/wp-content/uploads/2017/10/2017-Yamaha-YZF-R1.pdf","what":"Official Yamaha Motor Europe (UK) YZF-R1 brochure/spec sheet: Maximum power 147.1 kW (200.0 PS) @ 13,500 rpm (no ram air); Maximum torque 112.4 Nm (11.5 kg-m) @ 11,500 rpm; rear tyre 190/55 ZR17M/C (75W); wet weight 199 kg (copy) / 200 kg (Euro4 spec table)."},{"field_group":"engine","url":"https://www.bikez.com/motorcycles/yamaha_yzf-r1_2015.php","what":"Secondary corroboration: 200 PS @ 13,500 rpm, 112.5 Nm @ 11,500 rpm, 199.1 kg wet, 190/55-ZR17 rear."},{"field_group":"chassis","url":"https://www.motorcycle.com/specs/yamaha/sport/2015/yzf/r1/detail.html","what":"Secondary corroboration: 998 cc, 13.0:1, 190/55 ZR17 rear tire, wet weight 439 lb / 199.1 kg, 6-speed."},{"field_group":"engine","url":"https://cdn2.yamaha-motor.eu/prod/product-assets/2017/YZF1000R1/Factsheets/2017-YZF1000R1_en.pdf","what":"VERIFIER (2026-07-19): official Yamaha Motor Europe CDN factsheet, fetched and read directly: Maximum power 147.1kW (200.0PS) @ 13,500 rpm; Maximum torque 112.4Nm (11.5kg-m) @ 11,500 rpm; rear tyre 190/55 ZR17M/C (75W); body copy '199 kg wet weight', spec table 'Wet weight (including full oil and fuel tank) 200 kg' (2017MY); 998cc, 13.0:1, 1,405 mm wheelbase."},{"field_group":"engine","url":"https://www.motorcycledaily.com/2015/07/2015-yamaha-fzf-r1-md-ride-review/","what":"VERIFIER (2026-07-19): press-review corroboration of 14,000 rpm redline for the 2015 model ('spins up to 14,000 rpm redline'), matching the '14000 r/min red zone' text in service manual B3L-28197-20 (display-settings section, verified directly from the downloaded PDF: primary 1.634 (67/41); gears 2.600 (39/15), 2.176 (37/17), 1.842 (35/19), 1.579 (30/19), 1.381 (29/21), 1.250 (30/24); secondary 2.563 (41/16); chain 525 sealed, 113 links; rear tire 190/55ZR17M/C (75W); curb 201 kg R1 / 202 kg R1M)."}],"retrieved":"2026-07-19"},{"slug":"yamaha-yzf-r3-2019","make":"Yamaha","model":"YZF-R3","years":"2019-2026","category":"small","engine":{"redline_rpm":12500,"peak_power_hp":41.4,"peak_power_rpm":10750,"peak_torque_nm":29.6,"peak_torque_rpm":9000},"drivetrain":{"primary_ratio":3.043,"primary_teeth":"70/23","gear_ratios":[2.5,1.824,1.348,1.087,0.92,0.8],"gear_teeth":["35/14","31/17","31/23","25/23","23/25","24/30"],"stock_front":14,"stock_rear":43,"chain":"520"},"rear_tire":"140/70-17","wet_weight_kg":169,"notes":["Peak power is the manufacturer claim of 30.9 kW (42.0 PS) @ 10,750 rpm = 41.4 hp; many English-language sources round-label this '42 hp' (PS mislabeled as hp).","Peak torque claim varies 29.5-29.6 Nm (3.0 kgf-m) @ 9,000 rpm by market rounding; 29.6 recorded (bikez, BikesWiki, MCN's 21.8 ft-lb = 29.6 Nm).","Redline 12,500 rpm is the tachometer redline reported in press reviews (Ultimate Motorcycling; Autocar India road test: 'needle swings freely to the 12,500rpm redline, hits the limiter at 13,000rpm'); not printed in the owner's manual. Rev limiter reported ~12,750-13,000 rpm (owners/press).","Gear ratios and tooth pairs 1st-6th taken from the official 2019 YZF-R3 owner's manual (YZFR3K/YZFR3AK, ManualsLib pages 95-96); all ratios recompute exactly from teeth (e.g. 35/14 = 2.500, 31/17 = 1.824).","Primary 3.043 (70/23) and secondary 3.071 (43/14) quoted from Yamaha owner's manual BR5-F8199-E0 (2018-spec R3, identical engine/gearbox); primary 3.043 corroborated for 2019+ by BikesWiki. 43/14 stock sprockets corroborated by OEM-replacement kit listings.","Drivetrain unchanged across 2019-2026 (2019 facelift and 2025 update changed styling/suspension/lighting only, per BikesWiki year-by-year specs).","Wet weight: 2019 US owner's manual lists 167 kg (368 lb) non-ABS YZFR3K and 170 kg (375 lb) ABS YZFR3AK; Yamaha AU/EU claim 169 kg curb (ABS-only markets). 169 recorded.","Stock chain 520 pitch, 112 links (OEM-replacement chain/sprocket kit listings for 2015-2025 R3; Yamaha parts ref 94568-H3112-00)."],"sources":[{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/3591007/Yamaha-Yzf-R3-2019.html?page=95","what":"Official 2019 YZF-R3 owner's manual (pages 95-96): gear ratios 1st-6th with tooth pairs, curb weights 167/170 kg, Dunlop GPR-300 110/70-17 & 140/70-17 tires, LED lighting confirming 2019 facelift"},{"field_group":"drivetrain","url":"https://www.bike-parts-yam.com/thumbs/y/pdf/pbr5f8199e0e.pdf","what":"Yamaha YZF-R3/R3A owner's manual BR5-F8199-E0 (official PDF): primary reduction 3.043 (70/23), secondary reduction 3.071 (43/14), full gear table matching 2019 manual, 14 L tank"},{"field_group":"drivetrain","url":"https://bikeswiki.com/Yamaha_YZF-R3","what":"Year-by-year factory specs: 2019+ primary reduction 3.043 and gear ratios 2.500/1.824/1.348/1.087/0.920/0.800 corroboration; 169 kg curb"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1390690-street-yamaha-yzf-r3-2015-2025.html","what":"Stock gearing corroboration: 520 chain, 14T front / 43T rear, 112 links for 2015-2025 R3 (also sportbiketrackgear.com OEM-replacement kits)"},{"field_group":"engine","url":"https://bikez.com/motorcycles/yamaha_yzf-r3_2019.php","what":"Claimed 42.0 PS/30.9 kW class output @ 10,750 rpm, 29.6 Nm @ 9,000 rpm, 6-speed, 110/70-17 & 140/70-17 tires"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/yamaha/r3/2019/","what":"MCN 2019 R3 spec table: 41 bhp, 21.8 ft-lb, 169 kg kerb, tire sizes"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2019/01/23/2019-yamaha-yzf-r3-review-17-fast-facts/","what":"12,500 rpm redline; 321cc 68.0x44.1 mm parallel twin; power peak ~11k, torque ~9k; 368 lb wet (non-ABS)"},{"field_group":"chassis","url":"https://www.yamaha-motor.com.au/products/motorcycle/road/supersport/yzf-r3","what":"Official Yamaha AU: constant-mesh 6-speed, chain final drive, 110/70-17M/C 54H & 140/70-17M/C 66H, 169 kg wet, 14.0 L tank"},{"field_group":"engine","url":"https://www.motorcyclespecs.co.za/model/yamaha/yamaha-yzf-r3-2023.html","what":"Verifier corroboration: 30.9 kW / 41.4 hp @ 10,750 rpm; 29.6 Nm (3.0 kg-m) @ 9,000 rpm; 110/70-17 & 140/70-17; constant mesh 6-speed"},{"field_group":"engine","url":"https://www.autocarindia.com/bike-reviews/yamaha-yzf-r3-review-road-test-400215","what":"Verifier corroboration of 12,500 rpm tach redline (limiter at 13,000 rpm) and 41.4 bhp @ 10,750 rpm, Autocar India road test"},{"field_group":"drivetrain","url":"https://norton-motorsports.com/product/520-chain-sprocket-kits-yamaha-r3/","what":"Verifier corroboration: R3 OEM chain 520 pitch x 112 links, stock sprockets 14T front / 43T rear (also Amazon NICHE OEM-replacement listing B087YPRLXT: front 14 / rear 43, 520, 112 links)"}],"retrieved":"2026-07-19"},{"slug":"yamaha-yzf-r6-2017","make":"Yamaha","model":"YZF-R6","years":"2017-2020","category":"supersport-600","engine":{"redline_rpm":16500,"peak_power_hp":116.8,"peak_power_rpm":14500,"peak_torque_nm":61.7,"peak_torque_rpm":10500},"drivetrain":{"primary_ratio":2.073,"primary_teeth":"85/41","gear_ratios":[2.583,2.0,1.667,1.444,1.286,1.15],"gear_teeth":["31/12","32/16","30/18","26/18","27/21","23/20"],"stock_front":16,"stock_rear":45,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":190,"notes":["2017-2020 is the fourth and final street-homologated R6 generation (BN6); from 2021 the R6 continued as the track-only YZF-R6 RACE/GYTR with the same drivetrain.","Gear ratios, tooth pairs, primary reduction 2.073 (85/41) and secondary reduction 2.813 (45/16) transcribed from the official 2017 Yamaha YZF-R6 owner's manual specifications pages; printed decimals match tooth-pair computation to 3 decimals (31/12=2.583, 32/16=2.000, 30/18=1.667, 26/18=1.444, 27/21=1.286, 23/20=1.150).","Secondary reduction 45/16 in the manual is the final drive: stock sprockets 16 front / 45 rear; 525-pitch chain corroborated by OEM-replacement chain/sprocket kit listings for 2006-2020 R6.","Peak power is the manufacturer claim: 87.1 kW / 118.4 PS = 116.8 hp (mechanical) at 14,500 rpm; peak torque claim 61.7 Nm (45.5 lb-ft) at 10,500 rpm. Corroborated by two independent press sources (MCN: 116 bhp @ 14,500, 45.5 ft-lb @ 10,500; RunThaCity press-kit reprint: 116.8 bhp / 87.1 kW).","Redline 16,500 rpm is the indicated tachometer redline cited by press reviews (MCN, Ultimate Motorcycling); Yamaha does not publish an official redline figure.","Wet (curb) weight 190 kg and rear tire 180/55ZR17M/C (73W) per Yamaha's official MY2017 press release and the owner's manual.","gearingcommander.com was not used as a source."],"sources":[{"field_group":"drivetrain","url":"https://www.manualslib.com/manual/3303770/Yamaha-Yzf-R6-2017.html?page=104","what":"Official 2017 YZF-R6 owner's manual spec page: primary reduction 2.073 (85/41), secondary reduction 2.813 (45/16), gear ratios 1st-6th with tooth pairs, rear tire 180/55ZR17M/C(73W)"},{"field_group":"drivetrain","url":"https://runthacity.com/wp-content/uploads/2017/09/Yamaha-YZF-R6-2017-Owners-Manual.pdf","what":"Same official Yamaha 2017 owner's manual (PDF mirror) used to confirm manual provenance"},{"field_group":"drivetrain","url":"https://www.sportbiketrackgear.com/rk-driven-yamaha-yzf-r6-06-16-oem-replacement-chain-and-sprocket-kit/","what":"RK/Driven OEM-replacement kit for YZF-R6 2006-2020: 525-pitch chain, 16T front / 45T rear sprockets"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1390297-street-yamaha-yzf-r6-2006-2022.html","what":"Second corroboration that stock R6 (2006-2022 street) fitment is 525 chain with 16/45 sprockets"},{"field_group":"engine","url":"https://www.motorcyclenews.com/bike-reviews/yamaha/r6/2017/","what":"MCN spec panel: 116 bhp @ 14,500 rpm, 45.5 ft-lb (61.7 Nm) @ 10,500 rpm, 190 kg kerb, 16,500 rpm redline"},{"field_group":"engine","url":"https://runthacity.com/yzf-r6-17/","what":"Press-kit spec reprint: 116.8 bhp (87.1 kW) @ 14,500 rpm, 61.7 Nm @ 10,500 rpm (matches Yamaha EU claim)"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2017/03/24/2017-yamaha-yzf-r6-first-ride-11-fast-facts/","what":"Second independent source for 16,500 rpm redline: 'pulls strongly from around 9000 rpm to the 16,500-rpm redline'"},{"field_group":"chassis","url":"https://global.yamaha-motor.com/news/2016/1014/yzf-r6.html","what":"Official Yamaha MY2017 YZF-R6 press release: 190 kg weight, 599cc, 13.1:1, 120/70ZR17 front / 180/55ZR17 rear tires, 17 L tank"},{"field_group":"chassis","url":"https://www.manualslib.com/manual/3303770/Yamaha-Yzf-R6-2017.html?page=103","what":"Official owner's manual spec page: curb weight 190 kg (419 lb)"}],"retrieved":"2026-07-19"},{"slug":"yamaha-yzf-r7-2022","make":"Yamaha","model":"YZF-R7 (CP2)","years":"2022-2025","category":"twin","engine":{"redline_rpm":9500,"peak_power_hp":72.4,"peak_power_rpm":8750,"peak_torque_nm":67.0,"peak_torque_rpm":6500,"redline_estimated":true},"drivetrain":{"primary_ratio":1.925,"primary_teeth":"77/40","gear_ratios":[2.846,2.125,1.632,1.3,1.091,0.964],"gear_teeth":["37/13","34/16","31/19","26/20","24/22","27/28"],"stock_front":16,"stock_rear":42,"chain":"525"},"rear_tire":"180/55ZR17","wet_weight_kg":188,"notes":["Peak power is the manufacturer claim of 54.0 kW (73.4 PS) @ 8,750 rpm (Yamaha EU spec sheet; Yamaha JP lists 54 kW / 73 PS). Recorded as 72.4 hp (54.0 kW x 1.34102, mechanical hp). Sources quoting '73.4 hp' are conflating PS with hp.","Gear ratios and tooth pairs are both printed in the US owner's manual (p.9-1): 2.846 (37/13), 2.125 (34/16), 1.632 (31/19), 1.300 (26/20), 1.091 (24/22), 0.964 (27/28); the printed ratios match independent computation from the teeth to 3 decimals. Yamaha JP press-release table truncates 3rd to 1.631 and 5th to 1.090; tooth counts are identical, so the US-manual (rounded) values are used.","Secondary (final) reduction 2.625 (42/16). Yamaha's global press release states the R7's secondary ratio was 'optimized from the 43/16 = 2.678 of the MT-07 to 42/16 = 2.625' -- do not reuse MT-07 final gearing for this bike.","Primary reduction 1.925 (77/40) per Yamaha Japan official specification (shared CP2 engine spec with MT-07).","redline_rpm is null: Yamaha does not publish a redline/rev-limiter figure for the R7 and no manufacturer or corroborated secondary source states one. Track reviews report shifting 'just above 9,000 rpm'; peak power is at 8,750 rpm.","Chain 525 pitch, stock sprockets 16/42, corroborated by multiple independent sprocket/chain vendors (Sprocket Center, DID kit YA-R7 525VX3, Superlite/MOTO-D) and an OEM take-off listing; consistent with Yamaha's 42/16 secondary spec.","Generation note: 2022-2025 models share these specs. The 2026 YZF-R7 ABS is a model change (YCC-T ride-by-wire, 6-axis IMU, chassis revisions) -- global unveil at EICMA 2025-11-04, Yamaha JP domestic announcement 2026-04-09 with release 2026-05-29; Yamaha JP 2026 specs list the same primary/secondary/gear ratios, but this record covers 2022-2025.","Wet weight 188 kg (414 lb) is Yamaha's curb weight claim including full oil and 13 L fuel tank.","Redline is not published by the manufacturer; the chart ceiling is an estimate (claimed power peak + 8%)."],"sources":[{"field_group":"drivetrain","url":"https://maintenanceschedule.com/wp-content/uploads/2023/01/Yamaha-YZF-R7-Owners-Manual-US.pdf","what":"Yamaha YZF-R7 US Owner's Manual (manufacturer document, mirror), Specifications p.9-1/9-2: gear ratios with tooth pairs 2.846 (37/13) through 0.964 (27/28); curb weight 188 kg; rear tire 180/55ZR17M/C 73W"},{"field_group":"drivetrain","url":"https://global.yamaha-motor.com/jp/news/2021/1216/yzf-r7.html","what":"Yamaha Motor Japan official news release for YZF-R7 ABS (2022 domestic launch), main-specifications table: primary reduction 1.925 (77/40), secondary reduction 2.625 (42/16), gear ratios, 54 kW (73 PS) @ 8,750 rpm, 67 Nm @ 6,500 rpm, 188 kg"},{"field_group":"drivetrain","url":"https://global.yamaha-motor.com/news/2021/0519/yzf-r7.html","what":"Yamaha Motor global press release (2021-05-19): secondary ratio optimized from MT-07's 43/16 to 42/16 = 2.625; 67.0 Nm @ 6,500 rpm; 188 kg"},{"field_group":"engine","url":"https://yamaha.com.mt/wp-content/uploads/2025/01/Yamaha-R7-Spec-Sheet.pdf","what":"Official Yamaha (EU distributor) R7 spec sheet: maximum power 54.0 kW (73.4 PS) @ 8,750 rpm, maximum torque 67.0 Nm @ 6,500 rpm, wet weight 188 kg, rear tyre 180/55ZR17M/C (73W), 6-speed constant mesh"},{"field_group":"chassis","url":"https://www.motorcyclespecs.co.za/model/yamaha/yamaha_r7_22.html","what":"Secondary corroboration: 689 cc, 188 kg / 414 lb wet, 180/55ZR17 rear, power/torque @ same rpm (site rounds power to 55 kW)"},{"field_group":"drivetrain","url":"https://sprocketcenter.com/c-1392946-street-yamaha-yzf-r7-2022-2025.html","what":"Secondary corroboration (vendor fitment data): stock gearing 16 front / 42 rear, 525-pitch chain for YZF-R7 2022-2025"},{"field_group":"drivetrain","url":"https://www.carpimoto.com/en-XL/Bike_Yamaha_YZF-R7/Specific/Brand_DID/Drive-Transmission/Chain-Sprocket-Kit/33791_YA-R7-1-DID-525VX3-Chain-16.htm","what":"Secondary corroboration (DID kit fitment): YZF-R7 uses 525-pitch chain, 16T front"},{"field_group":"engine","url":"https://ultimatemotorcycling.com/2021/05/28/2022-yamaha-yzf-r7-review-17-first-track-ride-fast-facts/","what":"Press corroboration: stock secondary gearing 42/16; track shifting 'just above 9,000 rpm' (supports redline_rpm=null note)"},{"field_group":"drivetrain","url":"https://www.sportbiketrackgear.com/driven-520-chain-and-sprocket-kit-yamaha-yzf-r7-2022/","what":"Verifier corroboration (2026-07-19): stock gearing chart lists OEM front sprocket 16T, OEM rear sprocket 42T, OEM chain 525-108 links (second independent secondary source for 525 chain pitch)"},{"field_group":"generation","url":"https://global.yamaha-motor.com/jp/news/2026/0409/yzf.html","what":"Verifier addition: Yamaha Motor Japan news release 2026-04-09 announcing the YZF-R7 ABS model change (YCC-T electronic throttle, ride-support systems; release 2026-05-29) -- confirms the 2022-2025 generation boundary for this record"}],"verified":{"date":"2026-07-19","by":"independent verifier pass","method":"Re-derived all numerics from manufacturer sources: Yamaha JP news release table (primary 1.925 77/40, secondary 2.625 42/16, ratios, 54 kW/73 PS @ 8,750, 67 Nm @ 6,500, 188 kg, 180/55ZR17M/C 73W); US owner's manual PDF text extraction p.9-1/9-2 (all six ratios with tooth pairs match digit-for-digit, curb weight 188 kg / 414 lb, rear tire); Yamaha EU distributor spec sheet PDF (54.0 kW / 73.4 PS @ 8,750 rpm, 67.0 Nm @ 6,500 rpm, wet weight 188 kg incl. full oil and fuel). Chain 525 corroborated by two independent vendors (Sprocket Center, Sportbike Track Gear; both list 16/42, 525-108). Conversion check: 54.0 kW x 1.34102 = 72.4 hp. No manufacturer redline published; null stands."},"retrieved":"2026-07-19"}]}