Kawasaki ZX-6R
122 hp, 636 cc, 188 kg2003
Yamaha R6
121 hp, 600 cc, 182 kg2003 - 2004
MetricUS
EngineKawasaki ZX-6RYamaha R6
Displacement636 cc600 cc
Max power122 hp (@13 000 RPM)121 hp (@13 000 RPM)
Max torque67 Nm (@11 000 RPM)60 Nm (@12 000 RPM)
Redline15 500 RPM15 500 RPM
Idling speed1 300 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-4DOHC Inline-4
Compression12.80:112.40:1
Oil capacity4.00 litre3.40 litre
Oil type10W40, Motul 300V 10W40, Shell Rotella 10W4010W40, Motul 300V 10W40, Shell Rotella 10W40
Spark plug typeNGK CR9ENGK CR9EK, NGK CR10EK
CoolingLiquidLiquid
Valves1616
Bore68.0 mm65.5 mm
Stroke43.8 mm44.5 mm
Throttle bore38.0 mm38.0 mm
Weight to power1.54 kg/hp1.50 kg/hp
Power to weight648 hp/Ton664 hp/Ton
Battery type12 V, 8 Ah12 V 8 Ah, GT9B-4
GearboxKawasaki ZX-6RYamaha R6
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type
Gears count66
Primary ratio2.0221.955
Final drive2.6663.0
1. gear2.923 (117 km/h)2.846 (110 km/h)
2. gear2.055 (166 km/h)1.947 (161 km/h)
3. gear1.722 (198 km/h)1.556 (202 km/h)
4. gear1.45 (235 km/h)1.333 (235 km/h)
5. gear1.272 (268 km/h)1.19 (264 km/h)
6. gear1.153 (296 km/h)1.083 (290 km/h)
ChasisKawasaki ZX-6RYamaha R6
Frame typeTubular, diamondDiamond
Front susp.Telescopic fork USD, 120.00 mm travelTelescopic fork USD, 120.00 mm travel
Rear susp.Swingarm (uni-trak) 135.00 mm travelSwingarm link, spring/gas-oil damper