The Yamaha WR 450F 2-Trac motorcycle was produced in 2004 and features a four-stroke, single-cylinder engine with 449cc capacity and a liquid cooling system. The engine has a compression ratio of 12.5:1 and is equipped with a 39mm Keihin FCR flat-slide throttle position sensor and digital CDI ignition. The motorcycle has a maximum power output of 58 horsepower at 9000 rpm and a maximum torque of 49 Nm at 7000 rpm. It has a wet, multiple-disc clutch and a 5-speed transmission, with final drive provided by an “O” ring chain. The frame is made of steel and has a single cradle design, with the front suspension featuring a 46mm Kayaba inverted telescopic fork that is adjustable for compression and rebound damping. The rear suspension is fully adjustable and uses a Kayaba single shock with separate speed compression adjustment. The motorcycle has a front wheel travel of 300mm and a rear wheel travel of 318mm, with front and rear brakes consisting of single discs with 4 piston and 2 piston calipers, respectively. The front tire is 80/100-21 and the rear tire is 110/100-18. The motorcycle measures 2175mm in length, 825mm in width, and 1300mm in height, with a wheelbase of 1485mm and ground clearance of 365mm. The seat height is 998mm and the fuel capacity is 8 liters.
Technical specifications:
Make Model: Yamaha WR 450F 2-Trac
| Year | 2004 |
|---|---|
| Engine | Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder. |
| Capacity | 449 cc / 27.4 in |
| Bore x Stroke | 95 x 63.4 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 12.5:1 |
| Lubrication | Wet Sump |
| Induction | 39mm Keihin FCR flat-slide throttle position sensor |
| Ignition | Digital CDI |
| Starting | Electric / Kick-starter |
| Max Power | 58 hp / 42.3 kW @ 9000 rpm |
| Max Torque | 49 Nm / 33.1 lb-ft @ 7000 rpm |
| Clutch | Wet, multiple discs, cable operated |
| Transmission | 5 Speed |
| Final Drive | “O” ring Chain |
| Frame | Steel, Single cradle frame |
| Front Suspension | 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable |
| Front Wheel Travel | 300 mm / 11.8 in |
| Rear Suspension | Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment |
| Rear Wheel Travel | 318 mm / 12.4 in |
| Front Brakes | Single 250mm disc 4 piston caliper |
| Rear Brakes | Single 245mm disc 2-piston caliper |
| Front Tyre | 80/100-21 |
| Rear Tyre | 110/100-18 |
| Dimensions | Length 2175 mm / 85.6 in Width 825 mm / 32.5 in Height 1300 mm / 51.2 in |
| Wheelbase | 1485 mm / 58.5 in |
| Ground Clearance | 365 mm / 14.3 in |
| Seat Height | 998 mm / 39.3 in |
| Fuel Capacity | 8 Liters / 2.1 USgal |
