2009 Yamaha YFZ450

Engine
Type           449cc liquid-cooled w/fan, 4-stroke; DOHC, 5 titanium valves
Bore x Stroke       95.0mm x 63.4mm
Compression Ratio  11.4:1
Carburetion       Keihin 39mm FCR w/throttle position sensor
Ignition       DC - CDI
Starting System       Electric
Transmission       5-speed; wet multiplate clutch
Drive Train       2WD; sealed O-ring chain, eccentric adjustment
Chassis
Suspension/Front   Independent double wishbone, w/piggy back High-/Lo-speed compression,
           rebound and threaded preload adjustment, 9.1-in travel
Suspension/Rear       Cast aluminum swing arm w/rebound, High-/Lo-speed compression and
           threaded preload, 10.6-in travel
Brakes/Front       Dual ventilated hydraulic disc, twin piston
Brakes/Rear       Ventilated hydraulic disc, twin piston
Tires/Front       AT21 x 7-10 radial
Tires/Rear       AT20 x 10-9 radial
Dimensions
L x W x H       72.4 x 46.1 x 42.9 in
Seat Height       31.9 in
Wheelbase       50.4 in
Ground Clearance   4.5 in
Fuel Capacity       2.6 gal
Dry Weight       350 lb
Lighting       Dual 30W Krypton multi-reflector headlights & 3.9/0.5W LED brakelight