WR250F
Yamaha’s WR250F enduro bike has won more E1 World Championships than anyone else, and for 2007 this winning machine comes with a new aluminium chassis, sharper styling and uprated engine that is ready to deliver even more winning performance over any terrain.
Engine -
Engine type Liquid cooled, 4-stroke, DOHC, 5-valve, forward-inclined single cylinder
Displacement 250 cc
Bore x stroke 77x53.6 mm
Compression ratio 12.5:1
Lubrication system Dry sump
Fuel System Keihin FCR-MX37/1
Clutch type Wet, multiple-disc coil spring
Ignition system CDI
Starter system Kick and electric
Transmission system Constant mesh, 5-speed
Final transmission Chain
Fuel tank capacity 8 litres
Oil tank capacity 1.4 litre
Chassis -
Chassis: Alu semi-double cradle
Front suspension system Telescopic fork
Front travel 300 mm
Rear suspension system Swingarm (link suspension)
Rear travel 310 mm
Front brake Single disc, Ø 250 mm
Rear brake Single disc, Ø 245 mm
Front tyre 90/90-21 54R
Rear tyre 130/90-18 69R
Dimensions -
Length (mm) 2,180 mm
Width (mm) 825 mm
Height (mm) 1,305 mm
Seat height (mm) 990 mm
Wheel base (mm) 1,480 mm
Minimum ground clearance (mm) 370 mm
Dry weight (kg) 106 kg
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