Yamaha R3
42 hp, 321 cc, 166 kg2019 - 2020
Yamaha MT-03
41 hp, 321 cc2016 - 2018
MetricUS
EngineYamaha R3Yamaha MT-03
Displacement321 cc321 cc
Max power42 hp (@10 750 RPM)41 hp (@10 750 RPM)
Max torque29 Nm (@9 000 RPM)30 Nm (@9 000 RPM)
Redline12 245 RPM12 500 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, Yamalube 10W40, Shell Rotella 10W40
Spark plug typeNGK CR8ENGK CR8E
CoolingLiquidLiquid
Valves48
Bore68.0 mm68.0 mm
Stroke44.1 mm44.1 mm
Throttle bore32.0 mm
Weight to power3.95 kg/hp
Power to weight253 hp/Ton
Battery type12V, 7.0 Ah, GTZ8VGTZ8V
GearboxYamaha R3Yamaha MT-03
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count66
Primary ratio3.0433.043
Final drive3.0713.071
1. gear2.5 (62 km/h)2.5 (63 km/h)
2. gear1.824 (85 km/h)1.824 (87 km/h)
3. gear1.348 (115 km/h)1.348 (117 km/h)
4. gear1.087 (143 km/h)1.087 (146 km/h)
5. gear0.92 (169 km/h)0.92 (172 km/h)
6. gear0.8 (194 km/h)0.8 (198 km/h)
ChasisYamaha R3Yamaha MT-03
Frame typeSteel trellisDiamond
Front susp.KYB USD, 129 mm travel41mm Telescopic fork, 130.00 mm travel
Rear susp.Swingarm, spring/shock absorber, coil spring/oil damper, 130 mm travelSwingarm, 125.00 mm travel
Dyno chart of 2019 Yamaha R3