Comparisons / Comparison of Kawasaki KX 450F 2011 and Yamaha YZ450F 2010

Comparison of Kawasaki KX 450F 2011 and Yamaha YZ450F 2010 [S]ave

Attribute
Yamaha YZ450F 2010 ×
Kawasaki KX 450F 2011 ×
General
Production from (year)20102011
MakeYamahaKawasaki
ModelYamaha YZ450FKawasaki KX 450F
CategoryCross / motocrossCross / motocross
Engine and transmission
Engine typeSingle cylinder, four-strokeSingle cylinder, four-stroke
Valves per cylinder44
Fuel systemInjection. Fuel Injection (FI), Keihin® 44mmCarburettor. 43mm Keihin throttle body
Displacement (cm³)449449
Cooling systemLiquidLiquid
Transmission type,final driveChainChain
Bore (mm)9796
Stroke (mm)60.862.1
Gearbox5-speed5-speed
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)Double Overhead Cams/Twin Cam (DOHC)
IgnitionTCIDigital DC-CDI
Compression12.5:112.5:1
Chassis
Front suspensionKYB® Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travelUni-Trak linkage system and Kayaba shock with 50mm piston, 22-position low-speed and stepless high-speed compression damping
Rear suspensionKYB® Fully adjustable single shock; 12.4-in travelUni-Trak linkage system and Kayaba shock with 50mm piston, 22-position low-speed and stepless high-speed compression dampening
Front brakesSingle discSingle disc
Rear brakesSingle discSingle disc
Diameter (mm)245240
Frame type-Backbone frame, high-tensile steel
Front tyre80/100-2190/100-21
Rear tyre120/80-19120/80-19
Rake (fork angle) (degree)-26.7
Other
Color options
  • team yamaha blue/white
  • white/red
  • lime green
Dimensions
Wheelbase (mm)1,4911,481
Kerb weight (kg)111.1113.4
Overall height (mm)1,3111,280
Overall length (mm)2,1922,184
Overall width (mm)823820
Seat height (mm)998960
Ground clearance (mm)381335
Performance
Fuel capacity (l)6.057.19



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