At the heart of the 2008 ATK 450 Dirt Track super motard motorcycle, ATK utilizes a 449 cc (27.4 cu in) single cylinder, four-stroke layout. In factory specification, peak output is rated at 48 HP (35 kW) at 10,000 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 106.9 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 Dirt Track measures 109.8 kg (242 lbs) dry, translating to a power-to-weight ratio of 0.44 HP/kg (2.29 kg per horsepower). Rider ergonomics and chassis geometry center around a 762 mm (30 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, 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.
Specific Output
106.9 HP/L
Power-to-Weight
0.44 HP/kg (2.29 kg/HP)
Standover Height
762 mm (30 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power48.0 HP (35.0 kW)) @ 10000 RPM
Compression12.3:1
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Valves/Cylinder4
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
Ignition12v Battery w Constant Energy Inductive Coil
Transmission
Gearbox5-speed
ClutchHydraulic
Chassis
Front Suspension46mm Ohlins
Front Travel152 mm (6.0 inches)
Rear SuspensionOhlins POS
Rear Travel152 mm (6.0 inches)
Wheelbase1486 mm (58.5 inches)
Ground Clearance178 mm (7.0 inches)
Wheels & Brakes
Front BrakesSingle disc
Front Brake Ø240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight109.8 kg (242.0 pounds)
Power/Weight0.4373 HP/kg
Seat Height762 mm (30.0 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
