Yamaha WR450F 2011

Engine
Type        449cc liquid-cooled DOHC 4-stroke; 5 titanium valves
Bore x Stroke    95.0mm x 63.4mm
Compression Ratio    12.3:1
Fuel Delivery    Keihin® FCR 39
Ignition    CDI
Transmission    Constant-mesh 5-speed; multiplate wet clutch
Final Drive    Chain Drive

Chassis
Suspension / Front    Inverted fork; fully adjustable, 11.8-in travel
Suspension / Rear    Single shock; fully adjustable, 12-in travel
Brakes / Front    Hydraulic single disc brake, 250mm
Brakes / Rear    Hydraulic single disc brake, 245mm
Tires / Front    80/100-21 51M
Tires / Rear    110/100-18 64M

Dimensions
Length        85.6 in
Width        32.5 in
Height        51.2 in
Seat Height    38.6 in
Wheelbase    58.5 in
Ground Clearance    14.4 in
Fuel Capacity    2.1 gal
Wet Weight***    267 lb
Other
Warranty    30 Day (Limited Factory Warranty)