| Attribute | Value |
| General |
| Production from | 2009 year |
| Make | Yamaha |
| Model | Yamaha YZ450F |
| Category | Cross / motocross |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | 5 |
| Fuel system | Carburettor. Keihin FCR MX39 |
| Engine details | Add |
| Displacement | 449 cm³ |
| Power | Add |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Chain |
| Torque | Add |
| Bore | 95 mm |
| Stroke | 63.4 mm |
| Gearbox | 5-speed |
| Greenhouse gases | Add |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Emission details | Add |
| Driveline | Add |
| Ignition | CDI |
| Clutch | Add |
| Lubrication system | Add |
| Compression | 12.3:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Speed-Sensitive System inverted fork |
| Rear suspension | Fully adjustable single shock |
| Front brakes | Single disc |
| Rear brakes | Single disc |
| Diameter | 245 mm |
| Frame type | Add |
| Front tyre | 80/80-21 |
| Rear tyre | 120/80-19 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | 300 mm |
| Rear wheel travel | 312 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Add |
| Color options | - team yamaha blue/white
- white/red
|
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,494 mm |
| Kerb weight | 108 kg |
| Dry weight | Add |
| Power/weight ratio | Add |
| Overall height | 1,306 mm |
| Overall length | 2,195 mm |
| Overall width | 826 mm |
| Seat height | 988 mm |
| Alternate seat height | Add |
| Ground clearance | 373 mm |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 6.81 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |