450 MX

2007 ATK 450 MX Technical Analysis & Specification Breakdown

Engineered by ATK for the cross - motocross motorcycle segment, the 2007 ATK 450 MX features a 446 cc (27.2 cu in) single cylinder, four-stroke configuration. In factory specification, peak output is rated at 46 HP (33.6 kW) at 11,500 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 103.1 HP per liter, 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 450 MX measures 109.8 kg (242 lbs) dry, translating to a power-to-weight ratio of 0.42 HP/kg (2.39 kg per horsepower). Rider ergonomics and chassis geometry center around a 965 mm (38 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,486 mm (58.5 in) wheelbase engineered for balanced agility and highway composure. The 7.57-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's ATK archive, this model family spans 2 indexed model years from 2007 to 2008, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.