At the heart of the 2010 Kawasaki KX 450F Monster Energy cross - motocross motorcycle, Kawasaki pairs a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 96.0 x 62.1 mm (3.8 x 2.4 inches) with a 12.5:1 compression ratio.
On the scales, the KX 450F Monster Energy measures 112.1 kg (247 lbs) wet (curb). 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 1,481 mm (58.3 in) wheelbase engineered for balanced agility and highway composure. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
965 mm (38 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression12.5:1
Bore x Stroke96.0 x 62.1 mm (3.8 x 2.4 inches)
Valves/Cylinder4
Fuel SystemInjection. 43mm Keihin Throttle body
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionDigital DC-CDI
CoolingLiquid
Transmission
Gearbox5-speed
Chassis
Rake26.7°
Front Suspension48mm inverted, Kayaba AOS with DLC coated sliders, 22-position compression and 20-position rebound dampening adjustment / 12.4 in.
Rear SuspensionUNI-TRAK linkage system and Kayaba shock with 22-position low-speed and stepless high-speed compression dampening, 22-position rebound dampening and fully adjustable spring preload / 12.4 in.
Wheelbase1481 mm (58.3 inches)
Ground Clearance340 mm (13.4 inches)
Wheels & Brakes
Front Tyre90/100-21
Rear Tyre120/80-19
Front BrakesSingle disc
Front Brake Ø250 mm (9.8 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.112.1 kg (247.1 pounds)
Seat Height965 mm (38.0 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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
