Yamaha R3
42 hp, 321 cc, 366 lbs2019 - 2020
Kawasaki ZX-25R
45 hp, 249 cc2020
EngineYamaha R3Kawasaki ZX-25R
Displacement321 cc249 cc
Max power42 hp (@10 750 RPM)45 hp (@12 000 RPM)
Max torque21 lb ft (@9 000 RPM)24 lb ft (@9 000 RPM)
Redline12 245 RPM17 000 RPM
Idling speed1 200 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-2DOHC Inline-4
Compression11.20:1
Oil capacity2.27 quart
Oil type10W40, Motul 300V 10W40, Shell Rotella 10W40
Spark plug typeNGK CR8E
CoolingLiquidLiquid
Valves4
Bore68.0 mm
Stroke44.1 mm
Throttle bore32.0 mm
Weight to power8.71 lbs/hp
Power to weight286 hp/2500lbs
Battery type12V, 7.0 Ah, GTZ8V
GearboxYamaha R3Kawasaki ZX-25R
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count60
Primary ratio3.043
Final drive3.071
1. gear2.5 (39 mph)
2. gear1.824 (53 mph)
3. gear1.348 (71 mph)
4. gear1.087 (89 mph)
5. gear0.92 (105 mph)
6. gear0.8 (120 mph)
ChasisYamaha R3Kawasaki ZX-25R
Frame typeSteel trellis
Front susp.KYB USD, 129 mm travel
Rear susp.Swingarm, spring/shock absorber, coil spring/oil damper, 130 mm travel
Dyno chart of 2019 Yamaha R3