Yamaha WR450F 2025 vs. Kawasaki KX450X 2025

Technical Specifications Yamaha WR450F 2025 compared to Kawasaki KX450X 2025

Yamaha WR450F 2025

Kawasaki KX450X 2025

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Differences

Yamaha WR450F 2025

Kawasaki KX450X 2025

Engine and Drive Train

Bore	Bore	97 mm	Bore	96 mm
Stroke	Stroke	60.8 mm	Stroke	62.1 mm
Compression Ratio	Compression Ratio	13	Compression Ratio	12.5
Fuel system	Fuel system	Injection	Fuel system	Carburator
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	Transistor	Ignition	CDI, Digital
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 per cylinder	Valves per cylinder	4	Valves per cylinder	4
Valves	Valves	DOHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Lubrication	Lubrication	Forced	Lubrication	Forced
Displacement	Displacement	450 ccm	Displacement	449 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Travel	Travel	300 mm	Travel	305 mm
Adjustment	Adjustment	Compression, Preload, Rebound	Adjustment	Compression, Rebound

Suspension Rear

Shock mount	Shock mount	Deflection	Shock mount	Uni Trak
Travel	Travel	306 mm	Travel	307 mm

Chassis

Frame	Frame	Aluminium	Frame	Aluminium
Frame type	Frame type	Double cradle	Frame type	Perimeter
Rake	Rake	27 degree	Rake	42 degree
Trail	Trail	121 mm	Trail	120 mm

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	270 mm	Diameter	250 mm

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	240 mm	Diameter	240 mm

Dimensions and Weights

Front tyre width	Front tyre width	90 mm	Front tyre width	80 mm
Front tyre height	Front tyre height	90 %	Front tyre height	100 %
Front tyre diameter	Front tyre diameter	21 inch	Front tyre diameter	21 inch
Rear tyre width	Rear tyre width	140 mm	Rear tyre width	120 mm
Rear tyre height	Rear tyre height	80 %	Rear tyre height	90 %
Rear tyre diameter	Rear tyre diameter	18 inch	Rear tyre diameter	18 inch
Length	Length	2,170 mm	Length	2,185 mm
Width	Width	825 mm	Width	820 mm
Height	Height	1,270 mm	Height	1,265 mm
Wheelbase	Wheelbase	1,480 mm	Wheelbase	1,485 mm
Seat Height	Seat Height	955 mm	Seat Height	950 mm
Fuel Tank Capacity	Fuel Tank Capacity	7.9 l	Fuel Tank Capacity	6.2 l