| General |
| Year | 2007 - 08 | - |
| Colours | - | Orange/black/white |
| Make Model | Yamaha WR 450F | - |
| Warranty | - | 12 Months |
| Dimensions |
| Ground Clearance (mm) | - | 345 mm |
| Ground Clearance (in.) | - | 13.6 inches |
| Seat Height | 998 mm / 39.3 in | 970 mm / 38.2 in. |
| Wheelbase | 1485 mm / 58.5 in | 1,482 mm / 58.3 in. |
| Ground Clearance | 365 mm / 14.3 in | - |
| Height | 1300 mm / 51.2 in | 1,146 mm / 45.1 in. |
| Length | 2175 mm / 85.6 in | 2,065 mm / 81.3 in. |
| Width | 825 mm / 32.5 in | 1,204 mm / 47.4 in. |
| Weights & Capacities |
| Dry Weight | 112.5 kg / 248 lbs | 107 kg / 235.9 lbs |
| Fuel Capacity | 8 Liters / 2.1 US gal | 8.50 litres / 2.25 gallons |
| Wet Weight | 122 kg / 268 lbs | 292.1 kg / 643.9 lbs |
| Performance |
| Maximum RPM | - | 12000 |
| Max Power | 58 hp / 42.3 kW @ 9000 rpm | - |
| Max Torque | 49 Nm / 33.1 lb-ft @ 7000 rpm | - |
| Engine |
| Bore x Stroke (in,) | - | 3.5 x 2.3 inches |
| Engine Type | - | Single cylinder, four-stroke |
| Displacement (ci) | - | 21.34 cubic inches |
| Fuel Control | - | Single Overhead Cams (SOHC) |
| Displacement (cc) | - | 349.70 cc |
| Bore x Stroke (mm) | - | 88.0 x 57.5 mm |
| Displacement | 449 cc / 27.4 in | - |
| Engine Detail | Four stroke, single cylinder, DOHC, 5 titanium valve per cylinder. | Titanium valves |
| Fuel System | - | Injection |
| Bore x Stroke | 95 x 63.4 mm | - |
| Compression Ratio | 12.5:1 | 13.2:1 |
| Cooling System | Liquid cooled | - |
| Engine Lubrication | - | Pressure circulation lubrication with two Eaton pumps |
| Fuel Induction | 39mm Keihin FCR flat-slide throttle position sensor | - |
| Ignition | Digital CDI | Contactless controlled fully electronic ignition with digital ignition adjustment |
| Lubrication | Wet Sump | - |
| Starter | Electric / Kick-starter | Electric & kick |
| Drivetrain |
| Clutch | Wet, multiple discs, cable operated | Multidisc clutch in oil bath/hydraulically activated |
| Final Drive | "O" ring Chain | Chain |
| Gearbox | - | 6-speed |
| Primary Drive | - | Primary transmission 24:73 Final drive 13:52. |
| Transmission / Drive | 5 Speed | - |
| Chassis |
| Frame Type | Steel, Single cradle frame | Central tube frame made of chrome molybdenum steel tubing |
| Suspension - Front | 46mm Kayaba inverted telescopic fork, compression and rebound damping adjustable | WP Suspension Up Side Down 4860 MXMA PA |
| Suspension - Rear | Fully adjustable Kayaba single shock, 315mm wheel travel, separate speed compression adjustment | WPSuspension PDS 5018 DCC |
| Rake | - | 26.5° |
| Wheel Travel - Front | 300 mm / 11.8 in | 300 mm / 11.8 in. |
| Wheel Travel - Rear | 318 mm / 12.4 in | 335 mm / 13.2 in. |
| Electrical Systems |
| Lighting system | - | 30W x 2 halogen |
| Wheels & Brakes |
| Brakes - Rear Diameter (mm) | - | 220 mm |
| Brakes - Front Diameter (in.) | - | 10.2 inches |
| Brakes - Front Diameter (mm) | - | 260 mm |
| Brakes - Rear Diameter (in.) | - | 8.7 inches |
| Brakes - Front | Single 250mm disc 4 piston caliper | Single disc |
| Brakes - Rear | Single 245mm disc 2-piston caliper | Single disc |
| Rims | - | Excel AL7 rims with silver anodized stripes, |
| Tyres - Front | 80/100-21 | 80/100-21 |
| Tyres - Rear | 110/100-18 | 100/90-19 |