Kawasaki KX450 2021 vs. Yamaha WR450F 2009

Technical Specifications Kawasaki KX450 2021 compared to Yamaha WR450F 2009

Kawasaki KX450 2021

Yamaha WR450F 2009

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Same only

Differences

Kawasaki KX450 2021

Yamaha WR450F 2009

Engine and Drive Train

Bore	Bore	96 mm	Bore	95 mm
Stroke	Stroke	62.1 mm	Stroke	63.4 mm
Compression Ratio	Compression Ratio	12.8	Compression Ratio	12.3
Starter	Starter	Kick	Starter	Kick
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	CDI, Digital	Ignition	CDI
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	5	Number of gears	5
Cylinders	Cylinders	1	Cylinders	1
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves	Valves	DOHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	449 ccm	Displacement	449 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Telescopic fork

Chassis

Frame	Frame	Aluminium	Frame	Aluminium
Frame type	Frame type	Perimeter	Frame type	Twin Tube

Brakes Front

Technology	Technology	Petal	Technology	Wave

Brakes Rear

Type	Type	Disc	Type	Disc

Dimensions and Weights

Front tyre diameter	Front tyre diameter	21 inch	Front tyre diameter	21 inch
Rear tyre diameter	Rear tyre diameter	19 inch	Rear tyre diameter	18 inch
Length	Length	2,195 mm	Length	2,200 mm
Width	Width	820 mm	Width	825 mm
Height	Height	1,290 mm	Height	1,305 mm
Wheelbase	Wheelbase	1,495 mm	Wheelbase	1,500 mm
Seat Height	Seat Height	960 mm	Seat Height	990 mm
Fuel Tank Capacity	Fuel Tank Capacity	6.3 l	Fuel Tank Capacity	8 l