The Yamaha WR 450F motorcycle was produced in 2003-04, with a four-stroke, single cylinder engine, featuring 5 titanium valve per cylinder, and a capacity of 449 cc. The bike is liquid-cooled, with a 12.5:1 compression ratio and wet sump lubrication. The ignition is digital CDI, and the bike can be started with either an electric or kick-starter. It has a maximum power of 58 hp / 42.3 kW at 9000 rpm and max torque of 49 Nm / 33.1 lb-ft at 7000 rpm. The clutch is wet, multiple discs, cable-operated, and it has a 5-speed transmission with final drive via an “O”-ring chain.
The bike features a steel single cradle frame, with a front suspension consisting of a 46mm Kayaba inverted telescopic fork that is compression and rebound damping adjustable. The front wheel travel is 300 mm / 11.8 in, and the rear suspension is a fully adjustable Kayaba single shock with separate speed compression adjustment. The rear wheel travel is 318 mm / 12.4 in. The front brakes are a single 250mm disc 4 piston caliper, while the rear brakes are a single 245mm disc 2-piston caliper. The bike also comes with a front tire size of 80/100-21 and a rear tire size of 110/100-18.
In terms of dimensions, the bike is 2175 mm / 85.6 in in length, 825 mm / 32.5 in in width, and 1300 mm / 51.2 in in height. It has a wheelbase of 1485 mm / 58.5 in, a ground clearance of 365 mm / 14.3 in, and a seat height of 998 mm / 39.3 in. The bike has a dry weight of 112.5 kg / 248 lbs and a wet weight of 122 kg / 268 lbs. The fuel capacity is 8 liters / 2.1 US gal.
Make Model: Yamaha WR 450F
Year: 2003 – 04
Engine: Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder.
Capacity: 449 cc / 27.4 in
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