Yamaha YZ450F 2023 vs. Yamaha WR450F 2009

Technical Specifications Yamaha YZ450F 2023 compared to Yamaha WR450F 2009

Yamaha YZ450F 2023

Yamaha WR450F 2009

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Differences

Yamaha YZ450F 2023

Yamaha WR450F 2009

Engine and Drive Train

Bore	Bore	97 mm	Bore	95 mm
Stroke	Stroke	60.8 mm	Stroke	63.4 mm
Compression Ratio	Compression Ratio	13	Compression Ratio	12.3
Starter	Starter	Electric	Starter	Kick
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	CDI	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 per cylinder	Valves per cylinder	4	Valves per cylinder	5
Valves	Valves	DOHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	450 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	Twin Tube	Frame type	Twin Tube

Brakes Front

Technology	Technology	Wave	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	2,180 mm	Length	2,200 mm
Width	Width	830 mm	Width	825 mm
Height	Height	1,275 mm	Height	1,305 mm
Wheelbase	Wheelbase	1,480 mm	Wheelbase	1,500 mm
Seat Height	Seat Height	965 mm	Seat Height	990 mm
Fuel Tank Capacity	Fuel Tank Capacity	6.2 l	Fuel Tank Capacity	8 l