Yamaha R3
42 hp, 321 cc, 366 lbs2015 - 2018
Honda CBR300R
30 hp, 286 cc, 362 lbs2014 - 2016
EngineYamaha R3Honda CBR300R
Displacement321 cc286 cc
Max power42 hp (@10 750 RPM)30 hp (@8 500 RPM)
Max torque21 lb ft (@9 000 RPM)19 lb ft (@7 250 RPM)
Redline12 245 RPM10 500 RPM
Idling speed1 200 RPM1 400 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-2DOHC Single
Compression11.20:110.70:1
Oil capacity2.27 quart1.70 quart
Oil type10W40, Motul 300V 10W40, Shell Rotella 10W40
Spark plug typeNGK CR8ENGK SIMR8A9
CoolingLiquidLiquid
Valves44
Bore68.0 mm76.0 mm
Stroke44.1 mm63.0 mm
Throttle bore38.0 mm
Weight to power8.71 lbs/hp12.05 lbs/hp
Power to weight286 hp/2500lbs207 hp/2500lbs
Battery type12V, 7.0 Ah, GTZ8V12V 6Ah
GearboxYamaha R3Honda CBR300R
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeDID 520VF 108LE
Gears count66
Primary ratio3.0432.808
Final drive3.0712.714
1. gear2.5 (39 mph)3.333 (30 mph)
2. gear1.824 (53 mph)2.117 (48 mph)
3. gear1.348 (71 mph)1.571 (65 mph)
4. gear1.087 (89 mph)1.304 (78 mph)
5. gear0.92 (105 mph)1.115 (91 mph)
6. gear0.8 (120 mph)0.962 (105 mph)
ChasisYamaha R3Honda CBR300R
Frame typeDiamondDiamond
Front susp.Telescopic fork, coil spring, oil damper, 130 mm travel37mm fork, 5.12 in travel
Rear susp.Swingarm, spring/shock absorber, coil spring/oil damper, 130 mm travelMonoshock, 4.21 in travel
Dyno chart of 2015 Yamaha R3