Cycle World's 2006 MX Bike of the Year. Five years in a row. The CRF450R has won pretty much every honor thrown its way — and it has no plans of letting up. Which is why we've made it even lighter, more responsive and better handling than ever, retooling the cylinder head and intake valves, boosting the carb to 41mm, and adding a new brake lever linkage to improve stopping power, a new subframe and a Dunlop 742 FA front tire. Wicked, huh?
Engine Type: 449cc liquid-cooled single-cylinder four-stroke
Bore and Stroke: 96.0mm x 62.1mm
Compression Ratio: 12.0:1
Valve Train Unicam; four-valve
Carburetion: Keihin 40mm flat-slide
Ignition: CD with electronic advance
Rake: 26.79 degrees
Trail: 109.4mm (4.3 inches)
Wheelbase: 58.7 inches
Seat Height: 37.6 inches
Ground Clearance: 13.4 inches
Dry Weight: 218.5 pounds
Fuel Capacity: 1.9 gallons
Available Colors: Red