Built around Kawasaki's enduro - offroad motorcycle platform, the 2010 Kawasaki KLX 450R relies on a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 96.0 x 62.1 mm (3.8 x 2.4 inches) with a 12.0:1 compression ratio.
On the scales, the KLX 450R measures 126 kg (278 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 940 mm (37 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 7.94-liter (2.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Kawasaki archive, this model family spans 2 indexed model years from 2008 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
940 mm (37 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression12.0:1
Bore x Stroke96.0 x 62.1 mm (3.8 x 2.4 inches)
Fuel SystemCarburettor. Keihin FCR40
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionDigital AC-CDI
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Frame TypeAluminum, perimeter design
Rake27.7°
Trail122 mm (4.8 inches)
Front Suspension48mm inverted AOS-type cartridge fork with 22-way compression damping and 20-way rebound damping / 12.0 in.
Rear SuspensionUNI-TRAK single shock system with 22-way low-speed, two-turn variable high-speed compression damping and 22-way rebound damping / 12.4 in.
Wheelbase1481 mm (58.3 inches)
Ground Clearance320 mm (12.6 inches)
Wheels & Brakes
Front Tyre80/70-21
Rear Tyre110/70-18
Front BrakesSingle disc
Front Brake Ø250 mm (9.8 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.126.0 kg (277.7 pounds)
Seat Height940 mm (37.0 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.
