Kawasaki ZX-6R
128 hp, 636 cc, 423 lbs2005 - 2006
Kawasaki Ninja 250R
32 hp, 249 cc, 373 lbs2007 - 2012
EngineKawasaki ZX-6RKawasaki Ninja 250R
Displacement636 cc249 cc
Max power128 hp (@14 000 RPM)32 hp (@11 000 RPM)
Max torque47 lb ft (@11 500 RPM)16 lb ft (@9 500 RPM)
Redline15 000 RPM14 000 RPM
Idling speed1 200 RPM1 300 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-4DOHC Inline-2
Compression12.90:111.60:1
Oil capacity3.22 quart1.23 quart
Oil type10W50, Motul 5100 10W50, Liqui Moly 10W5010W40, Kawasaki 10W40, Shell Rotella 10W40
Spark plug typeNGK CR9ENGK CR8E
CoolingLiquidLiquid
Valves168
Bore68.0 mm62.0 mm
Stroke43.8 mm41.2 mm
Weight to power3.31 lbs/hp11.64 lbs/hp
Power to weight755 hp/2500lbs214 hp/2500lbs
Battery type12V 8Ah12V 8Ah, YTX9-BS
GearboxKawasaki ZX-6RKawasaki Ninja 250R
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain type520520
Gears count66
Primary ratio1.8913.087
Final drive2.8663.071
1. gear2.923 (70 mph)2.6 (41 mph)
2. gear2.055 (99 mph)1.789 (60 mph)
3. gear1.666 (122 mph)1.409 (75 mph)
4. gear1.45 (141 mph)1.16 (91 mph)
5. gear1.272 (160 mph)1.0 (106 mph)
6. gear1.153 (177 mph)0.893 (119 mph)
ChasisKawasaki ZX-6RKawasaki Ninja 250R
Frame typeTubular, diamondTubular, diamond
Front susp.USD fork, 120 mm travelTelescopic fork, 4.72 in travel
Rear susp.Monoshock (uni-trak) 5.31 in travel120/65Swingarm (uni-trak), 5.12 in travel