Manufacturer Honda Motor Company | Class Motocross | |
Engine Single-cylinder, SOHC, Multivalve, water-cooled, four-stroke | ||
The Honda CRF450F is a four-stroke racing motorcross bike built by Honda Motor Company. It is the successor to the Honda XR, which was discontinued in 2002.
Contents
- First generation 2002 2004
- Second generation 2005 2008
- Third generation 2009 2012
- Fourth generation 2013 present
- References
The Honda CRF450X is the enduro version of the Honda CRF450F
First generation: 2002-2004
The CRF450R was introduced in 2002. Unlike the competing Yamaha YZ426, the first generation CRF450R has an aluminum frame. In 2003, Honda added a longer shock and new linkage to raise the rear end and steepen the head angle. In 2003, camshaft, exhaust, and ignition map were revised. The handlebar size was changed to 7⁄8 in (22 mm) in 2004.
Second generation: 2005-2008
The second generation CRF450R had a redesigned motor and frame with new bodywork styling from the new CRF250R. In 2008, the Honda Progressive Steering Damper (HPSD) was introduced, allowing the steering geometry to be more aggressive.
Third generation: 2009-2012
The third generation CRF450R had fuel-injection and an all-new bike to match.
Fourth generation: 2013-present
The fourth and present generation of the CRF450R introduced a new twin-exhaust to centralize mass. Also new to the fourth generation were air forks.