| General |
| Year | - | 2007 - 08 |
| Colours | Red | - |
| Make Model | - | Yamaha WR 450F |
| Dimensions |
| Ground Clearance (in.) | 13.7 inches | - |
| Ground Clearance (mm) | 348 mm | - |
| Seat Height | 963 mm / 37.9 in. | 998 mm / 39.3 in |
| Wheelbase | 1,478 mm / 58.2 in. | 1485 mm / 58.5 in |
| Ground Clearance | - | 365 mm / 14.3 in |
| Height | - | 1300 mm / 51.2 in |
| Length | - | 2175 mm / 85.6 in |
| Width | - | 825 mm / 32.5 in |
| Weights & Capacities |
| Dry Weight | 113.4 kg / 250.0 lbs | 112.5 kg / 248 lbs |
| Fuel Capacity | - | 8 Liters / 2.1 US gal |
| Wet Weight | - | 122 kg / 268 lbs |
| Performance |
| Max Power | - | 58 hp / 42.3 kW @ 9000 rpm |
| Max Torque | - | 49 Nm / 33.1 lb-ft @ 7000 rpm |
| Engine |
| Displacement (cc) | 449.00 cc | - |
| Bore x Stroke (mm) | 96.0 x 62.0 mm | - |
| Stroke | 4 | - |
| Fuel Control | SOHC | - |
| Engine Type | Single cylinder | - |
| Bore x Stroke (in,) | 3.8 x 2.4 inches | - |
| Displacement (ci) | 27.40 cubic inches | - |
| Displacement | - | 449 cc / 27.4 in |
| Engine Detail | - | Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder. |
| Fuel System | Carburettor. Keihin 40.0mm flat-slide with throttle position sensor (TPS) | - |
| Bore x Stroke | - | 95 x 63.4 mm |
| Compression Ratio | 12.0:1 | 12.5:1 |
| Cooling System | - | Liquid cooled |
| Fuel Induction | - | 39mm Keihin FCR flat-slide throttle position sensor |
| Ignition | CD with electronic advance and lighting coil | Digital CDI |
| Lubrication | - | Wet Sump |
| Starter | Electric & kick | Electric / Kick-starter |
| Drivetrain |
| Clutch | - | Wet, multiple discs, cable operated |
| Final Drive | Chain | "O" ring Chain |
| Gearbox | 5-speed | - |
| Transmission / Drive | - | 5 Speed |
| Chassis |
| Frame Type | - | Steel, Single cradle frame |
| Suspension - Front | 47.0mm inverted Showa cartridge fork with 16-position rebound- and 16-position compression-damping adjustability | 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable |
| Suspension - Rear | Pro-Link Showa single shock with adjustable spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low speed (13 positions) and high-speed (3.5 turns) | Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment |
| Rake | 27.3° | - |
| Trail | 113 mm / 4.4 in. | - |
| Wheel Travel - Front | 315 mm / 12.4 in. | 300 mm / 11.8 in |
| Wheel Travel - Rear | 315 mm / 12.4 in. | 318 mm / 12.4 in |
| Wheels & Brakes |
| Brakes - Rear Diameter (mm) | 240 mm | - |
| Brakes - Rear Diameter (in.) | 9.4 inches | - |
| Brakes - Front Diameter (mm) | 240 mm | - |
| Brakes - Front Diameter (in.) | 9.4 inches | - |
| Brakes - Front | Single disc | Single 250mm disc 4 piston caliper |
| Brakes - Rear | Single disc | Single 245mm disc 2-piston caliper |
| Tyres - Front | 80/100-21 | 80/100-21 |
| Tyres - Rear | 110/90-18 | 110/100-18 |