New Yamaha WR450F 2010- Serious contender! Reviews and Specification



Dirt bikes don’t come any tougher than Yamaha’s WR enduro models. And with its outstanding power output and high-tech aluminium chassis, the WR450F is one of the most impressive E2 machines available today.
The will to win is an integral part of every Yamaha’s DNA, and wherever you look on the WR450F you can see that this dirt bike is a true thoroughbred. The 5-valve engine kicks out awesome levels of low to mid-range torque for outstanding cross country performance. And the GP-winning aluminium chassis design is built to handle the harshest terrain.
Engine type: Liquid-cooled, 4-stroke, forward-inclined single cylinder, 5-valves, DOHC
Displacement: 449 cc
Bore x stroke: 95.0 x 63.4 mm
Compression ratio: 12.3 : 1
Lubrication system: Dry sump
Carburettor: Keihin FCR-MX39/1
Clutch type: Wet, multiple-disc
Ignition system: CDI
Starter system: Electric and kick
Transmission system: Constant mesh, 5-speed
Final transmission: Chain
Fuel tank capacity: 8 L
Oil tank capacity: 1.2 L
Chassis: Alu semi-double cradle
Front suspension system: Telescopic forks
Front travel: 300 mm
Rear suspension system: Swingarm (link suspension)
Rear travel: 305 mm
Caster angle 26.8º
Trail 115 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
source http://www.yamaha-motor.co.uk/products/motorcycles/

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