Yamaha YZ450F 2010 vs. Yamaha YZ250F 2012

Technical Specifications Yamaha YZ450F 2010 compared to Yamaha YZ250F 2012

Yamaha YZ450F 2010

Yamaha YZ250F 2012

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Differences

Yamaha YZ450F 2010

Yamaha YZ250F 2012

Engine and Drive Train

Bore	Bore	97 mm	Bore	77 mm
Stroke	Stroke	60.8 mm	Stroke	53.6 mm
Compression Ratio	Compression Ratio	12.5	Compression Ratio	13.5
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
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	449.7 ccm	Displacement	250 ccm

Chassis

Frame type	Frame type	Double cradle	Frame type	Twin Tube

Dimensions and Weights

Front tyre width	Front tyre width	80 mm	Front tyre width	80 mm
Front tyre height	Front tyre height	100 %	Front tyre height	100 %
Front tyre diameter	Front tyre diameter	21 inch	Front tyre diameter	21 inch
Rear tyre width	Rear tyre width	110 mm	Rear tyre width	100 mm
Rear tyre height	Rear tyre height	90 %	Rear tyre height	90 %
Rear tyre diameter	Rear tyre diameter	19 inch	Rear tyre diameter	19 inch
Length	Length	2,191 mm	Length	2,163 mm
Width	Width	825 mm	Width	825 mm
Height	Height	1,311 mm	Height	1,306 mm
Wheelbase	Wheelbase	1,487 mm	Wheelbase	1,468 mm
Seat Height	Seat Height	999 mm	Seat Height	992 mm
Kerb Weight	Kerb Weight	111.9 kg	Kerb Weight	103 kg
Fuel Tank Capacity	Fuel Tank Capacity	6 l	Fuel Tank Capacity	6.4 l