Yamaha R6
121 hp, 600 cc, 401 lbs2003 - 2004
Kawasaki Z H2
197 hp, 998 cc, 527 lbs2020
EngineYamaha R6Kawasaki Z H2
Displacement600 cc998 cc
Max power121 hp (@13 000 RPM)197 hp (@10 500 RPM)
Max torque44 lb ft (@12 000 RPM)101 lb ft (@8 500 RPM)
Redline15 500 RPM12 000 RPM
Idling speed1 100 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-4DOHC Inline-4
Compression12.40:111.20:1
Oil capacity3.22 quart3.31 quart
Oil type10W40, Motul 300V 10W40, Shell Rotella 10W4010W40
Spark plug typeNGK CR9EK, NGK CR10EKNGK SILMAR9E9
CoolingLiquidLiquid
Valves1616
Bore65.5 mm76.0 mm
Stroke44.5 mm55.0 mm
Throttle bore38.0 mm36.0 mm
Weight to power3.32 lbs/hp2.67 lbs/hp
Power to weight753 hp/2500lbs934 hp/2500lbs
Battery type12 V 8 Ah, GT9B-412V 8.6Ah, YTZ10S
GearboxYamaha R6Kawasaki Z H2
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type525
Gears count66
Primary ratio1.9551.48
Final drive3.02.556
1. gear2.846 (68 mph)3.077 (78 mph)
2. gear1.947 (100 mph)2.471 (96 mph)
3. gear1.556 (125 mph)2.045 (116 mph)
4. gear1.333 (146 mph)1.727 (138 mph)
5. gear1.19 (164 mph)1.524 (156 mph)
6. gear1.083 (180 mph)1.348 (176 mph)
ChasisYamaha R6Kawasaki Z H2
Frame typeDiamond
Front susp.Telescopic fork USD, 4.72 in travelShowa Big Piston Fork USD
Rear susp.Swingarm link, spring/gas-oil damperShowa monoshock