| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Honda |
| Model Name | CRF450F |
| Year | 2009 |
| Category(class) | Motocross / Dirtbike |
| Engine |
|---|
| Engine Capacity (Displacement) | 449 ccm (27.4 cubic inches) |
| Engine Type | Single cylinder, four-stroke |
| Bore x Stroke | Ø96.0 mm x 62.1 mm (Ø3.78 inches x 2.44 inches) |
| Bore/Stroke Ratio | 1.55 |
| Compression Ratio | 12.0:1 |
| Timing System | SOHC |
| Fuel System(Carburetion) | Injection. Programmed Fuel Injection (PGM-FI), 50mm throttle body. |
| Ignition | Full Transistor with three-gearposition electronic advance |
| Starter System | Electric |
| Cooling System | Liquid |
| Powertrain |
|---|
| Gearbox | 5 speed |
| Transmission (Final Drive) | Chain |
| Chassis/Suspension/Brakes |
|---|
| Front Suspension | 48mm inverted KYB Air-Oil-Separate (AOS) with 16-position rebound and 18-position compression damping adjustability |
| Front Suspension Travel | 310 mm (12.2 inches) |
| Rear Suspension | Pro-Link KYB single shock with spring preload, 20-position rebound damping adjustability, and compression damping adjustment separated into low-speed (18 positions) and high-speed (1 1/2 turns) |
| Rear Suspension Travel | 320 mm (12.6 inches) |
| Front Brakes | Double disc |
| Front Brakes Diameter | Ø240 mm (Ø9.45 inches) |
| Rear Brakes | Single disc |
| Rear Brakes Diameter | Ø240 mm (Ø9.45 inches) |
| Front Tire | 80/18-21 |
| Rear Tire | 120/80-19 |
| Dimensions |
|---|
| Seat Height | 955 mm (37.6 inches) |
| Fork Angle (Rake) | 26.0° degrees |
| Trail | 114 mm (4.49 inches) |
| Wheelbase | 1491 mm (58.7 inches) |
| Ground Clearance | 333 mm (13.11 inches) |
| Curb Weight | 106.5 kg (235 lb) |
| Fuel Capacity | 5.67 litres (1.5 gallons) |
| Performance |
|---|
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | - |
| 0-60 mph | - |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
