At the heart of the 2010 BamX BX450-S Assault atv motorcycle, BamX features a 486 cc (29.7 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 40 HP (29.2 kW) at 8,000 rpm while maximum torque reaches 36 Nm (26.6 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 82.3 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the BX450-S Assault measures 200 kg (441 lbs) dry, translating to a power-to-weight ratio of 0.2 HP/kg (5 kg per horsepower). Rider ergonomics and chassis geometry center around a 828 mm (32.6 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,260 mm (49.6 in) wheelbase engineered for quick, flickable steering geometry. The 8.8-liter (2.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
82.3 HP/L
Power-to-Weight
0.2 HP/kg (5 kg/HP)
Standover Height
828 mm (32.6 in)
Engine
Displacement486.0 ccm (29.66 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power40.0 HP (29.2 kW)) @ 8000 RPM
Torque36.0 Nm (3.7 kgf-m or 26.6 ft.lbs) @ 8000 RPM
Compression10.8:1
Bore x Stroke94.0 x 64.6 mm (3.7 x 2.5 inches)
Valves/Cylinder5
Fuel SystemCarburettor. Mikuni BSR42
IgnitionCDI
LubricationPressure/Splash
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Front SuspensionIndependent double swing arm
Rear SuspensionSingle swing arm
Wheelbase1260 mm (49.6 inches)
Ground Clearance249 mm (9.8 inches)
Wheels & Brakes
Front Tyre21/7-10
Rear Tyre20/10-9
Front BrakesSingle disc. Dual ventilated hydraulic disc
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
