Yamaha R6
121 hp, 600 cc, 401 lbs2003 - 2004
KTM 390 Duke
43 hp, 373 cc, 346 lbs2015 - 2016
EngineYamaha R6KTM 390 Duke
Displacement600 cc373 cc
Max power121 hp (@13 000 RPM)43 hp (@8 600 RPM)
Max torque44 lb ft (@12 000 RPM)25 lb ft (@6 800 RPM)
Redline15 500 RPM10 500 RPM
Idling speed1 650 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-4DOHC Single
Compression12.40:112.90:1
Oil capacity3.22 quart
Oil type10W40, Motul 300V 10W40, Shell Rotella 10W4015W50
Spark plug typeNGK CR9EK, NGK CR10EKBOSCH VR 5 NE, BOSCH VR 5 NEU
CoolingLiquidLiquid
Valves164
Bore65.5 mm89.0 mm
Stroke44.5 mm60.0 mm
Throttle bore38.0 mm
Weight to power3.32 lbs/hp8.05 lbs/hp
Power to weight753 hp/2500lbs310 hp/2500lbs
Battery type12 V 8 Ah, GT9B-4
GearboxYamaha R6KTM 390 Duke
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeX-Ring 5/8 x 1/4"
Gears count66
Primary ratio1.9552.667
Final drive3.03.0
1. gear2.846 (68 mph)2.667 (35 mph)
2. gear1.947 (100 mph)1.857 (50 mph)
3. gear1.556 (125 mph)1.421 (66 mph)
4. gear1.333 (146 mph)1.143 (82 mph)
5. gear1.19 (164 mph)0.956 (98 mph)
6. gear1.083 (180 mph)0.84 (112 mph)
ChasisYamaha R6KTM 390 Duke
Frame typeDiamondSteel trellis frame
Front susp.Telescopic fork USD, 4.72 in travelUSD 43mm, 5.91 in travel
Rear susp.Swingarm link, spring/gas-oil damperMonoshock, 5.91 in travel