Comparisons / Comparison of Kawasaki KX450X and Yamaha YZ450F 2008

Comparison of Kawasaki KX450X and Yamaha YZ450F 2008 [S]ave

Attribute
Yamaha YZ450F 2008 ×
Kawasaki KX450X ×
General
Production from (year)20082021
MakeYamahaKawasaki
ModelYamaha YZ450FKawasaki KX450X
CategoryCross / motocrossCross / motocross
Engine and transmission
Engine typeSingle cylinder, four-strokeSingle cylinder, four-stroke
Fuel system-Injection. DFI® with 44mm Keihin throttle body
Displacement (cm³)449449
Cooling systemLiquidLiquid
Transmission type,final driveChainChain
Bore (mm)9596
Stroke (mm)63.462
Gearbox5-speed5-speed
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)Double Overhead Cams/Twin Cam (DOHC)
IgnitionCDIDigital CDI with 3 Coupler Options
Clutch-Wet multi-disc, manual
Compression12.3:112.5:1
Chassis
Front suspensionSpeed-Sensitive System inverted fork49mm inverted telescopic coil-spring fork with 16-way compression damping and 16-way rebound damping
Rear suspensionFully adjustable single shockUni-Trak® gas charged shock with piggyback reservoir with dual-range (4 turns stepless high speed/19-way low-speed) compression damping
Front brakesSingle discSingle disc. Semi-floating petal discs
Rear brakesSingle discSingle disc. Single-piston caliper.
Diameter (mm)245250
Frame type-Aluminum perimeter
Front tyre80/80-M2180/100-21
Rear tyre120/80-M19120/80-18
Front wheel travel (mm)300305
Rear wheel travel (mm)312307
Trail (mm)-119
Rake (fork angle) (degree)2627.6
Other
Starter-Electric
Color options
  • team yamaha blue/white
  • white/red
  • lime green
Dimensions
Wheelbase (mm)1,4941,485
Dry weight (kg)99107
Overall height (mm)1,3061,265
Overall length (mm)2,1952,185
Overall width (mm)826820
Seat height (mm)988950
Ground clearance (mm)373335
Performance
Fuel capacity (l)6.816.2



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