CRF 450 R

2006 Honda CRF 450 R Technical Analysis & Specification Breakdown

Engineered by Honda for the cross - motocross motorcycle segment, the 2006 Honda CRF 450 R relies on a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 55 HP (40.1 kW) at 9,000 rpm while maximum torque reaches 50 Nm (36.9 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 122.5 HP per liter and a 2,500 rpm working window between peak torque (6,500 rpm) and peak power (9,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the CRF 450 R measures 109 kg (240 lbs) wet (curb), translating to a power-to-weight ratio of 0.5 HP/kg (1.98 kg per horsepower). Rider ergonomics and chassis geometry center around a 955 mm (37.6 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,491 mm (58.7 in) wheelbase engineered for balanced agility and highway composure. The 7.19-liter (1.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Honda archive, this model family spans 6 indexed model years from 2002 to 2008, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.