Yamaha Vmax
170 hp, 1679 cc, 686 lbs2020
KTM 390 Duke
43 hp, 373 cc, 346 lbs2015 - 2016
EngineYamaha VmaxKTM 390 Duke
Displacement1679 cc373 cc
Max power170 hp43 hp (@8 600 RPM)
Max torque99 lb ft25 lb ft (@6 800 RPM)
Redline9 500 RPM10 500 RPM
Idling speed1 200 RPM1 650 RPM
ManagementFuel InjectionFuel Injection
LayoutSOHC V4DOHC Single
Compression11.30:112.90:1
Oil type15W50
Spark plug typeBOSCH VR 5 NE, BOSCH VR 5 NEU
CoolingLiquidLiquid
Valves4
Bore90.0 mm89.0 mm
Stroke66.0 mm60.0 mm
Weight to power4.03 lbs/hp8.05 lbs/hp
Power to weight619 hp/2500lbs310 hp/2500lbs
GearboxYamaha VmaxKTM 390 Duke
TypeSequentialSequential
ClutchSlipperWet
DriveChainChain
Chain typeX-Ring 5/8 x 1/4"
Gears count06
Primary ratio2.667
Final drive3.0
1. gear2.667 (35 mph)
2. gear1.857 (50 mph)
3. gear1.421 (66 mph)
4. gear1.143 (82 mph)
5. gear0.956 (98 mph)
6. gear0.84 (112 mph)
ChasisYamaha VmaxKTM 390 Duke
Frame typeAluminum die cast frameSteel trellis frame
Front susp.YHSJ 52mm fork, 4.72 in travelUSD 43mm, 5.91 in travel
Rear susp.YHSJ shock, 4.33 in travelMonoshock, 5.91 in travel