Yamaha WR450F 2011 vs. Yamaha YZ450F 2011

Technical Specifications Yamaha WR450F 2011 compared to Yamaha YZ450F 2011

Yamaha WR450F 2011

Yamaha YZ450F 2011

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Differences

Yamaha WR450F 2011

Yamaha YZ450F 2011

Engine and Drive Train

Bore	Bore	95 mm	Bore	97 mm
Stroke	Stroke	63.4 mm	Stroke	60.8 mm
Compression Ratio	Compression Ratio	12.3	Compression Ratio	12.5
Starter	Starter	Kick	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
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves per cylinder	Valves per cylinder	5	Valves per cylinder	4
Valves	Valves	DOHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	449 ccm	Displacement	449.7 ccm

Chassis

Frame type	Frame type	Twin Tube	Frame type	Double cradle

Dimensions and Weights

Length	Length	2,200 mm	Length	2,191 mm
Width	Width	825 mm	Width	825 mm
Height	Height	1,305 mm	Height	1,311 mm
Wheelbase	Wheelbase	1,500 mm	Wheelbase	1,487 mm
Seat Height	Seat Height	990 mm	Seat Height	999 mm
Fuel Tank Capacity	Fuel Tank Capacity	8 l	Fuel Tank Capacity	6 l