Do you have a question about the Honda CRF450RL 2021 and is the answer not in the manual?
Scheduled maintenance for off-road and on-road use based on hours or mileage.
Procedures for checking and changing engine oil and filter.
Spark plug inspection/replacement and valve clearance adjustment.
Inspection and maintenance of brake fluid, pads, and system.
Inspection and procedures for front and rear suspension.
Procedures for draining and filling fork oil.
| Engine Type | 449cc liquid-cooled single-cylinder four-stroke |
|---|---|
| Bore x Stroke | 96.0mm x 62.1mm |
| Compression Ratio | 12.0:1 |
| Fuel System | Programmed Fuel Injection (PGM-FI), 46mm throttle body |
| Ignition | Full transistorized ignition |
| Starter | Electric |
| Transmission | 6-speed |
| Rear Brake | Single 240mm disc |
| Front Tire | 80/100-21 |
| Rear Tire | 120/80-18 |
| Seat Height | 37.2 inches |
| Fuel Capacity | 2.0 gallons |
| Displacement | 449cc |
| Final Drive | Chain |
| Front Suspension | 49mm inverted telescopic fork; 12.0 inches of travel |
| Rear Suspension | Pro-Link system |
| Front Brake | Single 260mm disc |
| Curb Weight | 289 lbs. |
| Ground Clearance | 12.4 inches |











