Yamaha R3
42 hp, 321 cc, 166 kg2019 - 2020
Yamaha R3
42 hp, 321 cc, 166 kg2015 - 2018
MetricUS
EngineYamaha R3Yamaha R3
Displacement321 cc321 cc
Max power42 hp (@10 750 RPM)42 hp (@10 750 RPM)
Max torque29 Nm (@9 000 RPM)29 Nm (@9 000 RPM)
Redline12 245 RPM12 245 RPM
Idling speed1 200 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-2DOHC Inline-2
Compression11.20:111.20:1
Oil capacity2.40 litre2.40 litre
Oil type10W40, Motul 300V 10W40, Shell Rotella 10W4010W40, Motul 300V 10W40, Shell Rotella 10W40
Spark plug typeNGK CR8ENGK CR8E
CoolingLiquidLiquid
Valves44
Bore68.0 mm68.0 mm
Stroke44.1 mm44.1 mm
Throttle bore32.0 mm
Weight to power3.95 kg/hp3.95 kg/hp
Power to weight253 hp/Ton253 hp/Ton
Battery type12V, 7.0 Ah, GTZ8V12V, 7.0 Ah, GTZ8V
GearboxYamaha R3Yamaha R3
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count66
Primary ratio3.0433.043
Final drive3.0713.071
1. gear2.5 (62 km/h)2.5 (62 km/h)
2. gear1.824 (85 km/h)1.824 (85 km/h)
3. gear1.348 (115 km/h)1.348 (115 km/h)
4. gear1.087 (143 km/h)1.087 (143 km/h)
5. gear0.92 (169 km/h)0.92 (169 km/h)
6. gear0.8 (194 km/h)0.8 (194 km/h)
ChasisYamaha R3Yamaha R3
Frame typeSteel trellisDiamond
Front susp.KYB USD, 129 mm travelTelescopic fork, coil spring, oil damper, 130 mm travel
Rear susp.Swingarm, spring/shock absorber, coil spring/oil damper, 130 mm travelSwingarm, spring/shock absorber, coil spring/oil damper, 130 mm travel
Dyno chart of 2019 Yamaha R3 and 2015 Yamaha R3