Yamaha Vmax
170 hp, 1679 cc, 686 lbs2020
Yamaha WR450F
50 hp, 449 cc, 273 lbs2012 - 2015
EngineYamaha VmaxYamaha WR450F
Displacement1679 cc449 cc
Max power170 hp50 hp (@8 500 RPM)
Max torque99 lb ft36 lb ft (@7 500 RPM)
Redline9 500 RPM11 500 RPM
Idling speed1 200 RPM1 900 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC V4DOHC Single
Compression11.30:112.30:1
Oil capacity0.95 quart
Oil type10W40
Spark plug typeNGK CR8E
CoolingLiquidLiquid
Valves5
Bore90.0 mm95.0 mm
Stroke66.0 mm63.4 mm
Throttle bore42.0 mm
Weight to power4.03 lbs/hp5.47 lbs/hp
Power to weight619 hp/2500lbs457 hp/2500lbs
Battery type12V 6Ah, YTZ7S (F)
GearboxYamaha VmaxYamaha WR450F
TypeSequentialSequential
ClutchSlipperWet
DriveChainChain
Chain typeDAIDO 520VM2 114 links
Gears count05
Primary ratio2.652
Final drive3.846
1. gear2.417 (37 mph)
2. gear1.733 (52 mph)
3. gear1.313 (68 mph)
4. gear1.05 (84 mph)
5. gear0.84 (106 mph)
ChasisYamaha VmaxYamaha WR450F
Frame typeAluminum die cast frameBilateral beam aluminum
Front susp.YHSJ 52mm fork, 4.72 in travel48mm USD, 11.81 in travel
Rear susp.YHSJ shock, 4.33 in travelSwingarm monoshock, 11.57 in travel