Yamaha MT-03
48 hp, 660 cc, 423 lbs2006 - 2015
Aprilia RS660
100 hp, 660 cc, 403 lbs2020 - 2021
EngineYamaha MT-03Aprilia RS660
Displacement660 cc660 cc
Max power48 hp (@6 250 RPM)100 hp (@10 500 RPM)
Max torque41 lb ft (@5 500 RPM)49 lb ft (@8 500 RPM)
Redline7 500 RPM12 000 RPM
Idling speed1 200 RPM1 200 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC SingleDOHC Inline-2
Compression10.00:113.50:1
Oil capacity3.22 quart
Oil type10W40, Yamalube 10W40, Shell Rotella 10W40
Spark plug typeNGK CR7E
CoolingLiquidLiquid
Valves48
Bore100.0 mm81.0 mm
Stroke84.0 mm63.0 mm
Throttle bore48.0 mm
Weight to power8.82 lbs/hp4.03 lbs/hp
Power to weight283 hp/2500lbs619 hp/2500lbs
Battery typeGT9B-4, 12V 8Ah
GearboxYamaha MT-03Aprilia RS660
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count50
Primary ratio2.083
Final drive3.1332.52
1. gear2.5 (34 mph)
2. gear1.625 (52 mph)
3. gear1.15 (73 mph)
4. gear0.909 (93 mph)
5. gear0.769 (109 mph)
ChasisYamaha MT-03Aprilia RS660
Frame typeTruss diamondDouble beam aluminum
Front susp.Telescopic fork, 5.12 in travel41mm KYB USD, 4.72 in travel
Rear susp.Swingarm, 4.72 in travelMonoshock, 5.12 in travel