Comparisons / Comparison of Kawasaki KFX 450R 2011 and Yamaha YFZ450X 2010

Comparison of Kawasaki KFX 450R 2011 and Yamaha YFZ450X 2010 [S]ave

Attribute
Kawasaki KFX 450R 2011 ×
Yamaha YFZ450X 2010 ×
General
Production from (year)20112010
MakeKawasakiYamaha
ModelKawasaki KFX 450RYamaha YFZ450X
CategoryATVATV
Engine and transmission
Engine typeSingle cylinder, four-strokeV2, four-stroke
Valves per cylinder45
Fuel systemCarburettor. 32-bit digital, with 42mm Keihin throttle bodyInjection. Yamaha Fuel Injection (YFI), 42mm
Displacement (cm³)449449
Cooling systemLiquidLiquid
Transmission type,final driveChainChain
Bore (mm)9695
Stroke (mm)62.163.4
Gearbox5-speed5-speed
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)Double Overhead Cams/Twin Cam (DOHC)
DrivelineTwo-wheel drive, chain-
IgnitionDigital AC-CDIDigital TCI: Transistor Controlled Ignition
Compression8.9:111.6:1
Chassis
Front suspensionDual A-arms, coil-over shocks / 8.5 inIndependent double wishbone, w/Kashima coated piggyback shocks, High/Low speed compression, rebound and threaded preload adjustment, 9.4-in travel
Rear suspensionSwingarm with piggy-back reservoir shock, dual-rate spring / 10.0 inCast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel
Front brakesDouble discDouble disc
Rear brakesSingle discSingle disc
Diameter (mm)200-
Frame typeAluminum double cradle, racing type-
Front tyre21/7-1021/7-AT10
Rear tyre20/10-920/10-AT9
Other
StarterElectricElectric
Color options
  • lime green
  • team yamaha blue
  • white/red
Dimensions
Wheelbase (mm)1,2551,270
Kerb weight (kg)392.5181.4
Overall height (mm)1,0641,064
Overall length (mm)1,8061,796
Overall width (mm)1,1711,171
Seat height (mm)785810
Ground clearance (mm)109114
Performance
Fuel capacity (l)9.849.84



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