Enduro Bikes

2010Kawasaki KLX 450R

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The 2010 Kawasaki KLX 450R is a capable mid-size enduro bike designed for serious off-road riders seeking a balance of power and manageability. Its liquid-cooled 449cc single-cylinder engine delivers responsive performance across varied terrain, while the aluminum perimeter frame and aggressive geometry make it equally at home on technical trails and motocross circuits.

Capacity: 449.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Wet weight: 126.0 kg
Seat height: 940 mm
Power: 56.4 HP (42.1 kW)

⇄ Compare with another bike All model years

What’s new for the 2010 Kawasaki KLX 450R

vs the 2008

Spec	2008	2010
Power	35.4 HP (26.0 kW)	56.4 HP (42.1 kW)
Front suspension	48mm inverted AOS-type cartridge fork with 22-way compression damping and 20-way rebound damping / 11.2 in.	48mm inverted AOS-type cartridge fork with 22-way compression damping and 20-way rebound damping / 12.0 in.
Rear suspension	UNI-TRAKÂ® single shock system with 22-way low-speed, two-turn variable high-speed compression damping and 22-way rebound damping / 11.0 in.	UNI-TRAK single shock system with 22-way low-speed, two-turn variable high-speed compression damping and 22-way rebound damping / 12.4 in.
Front brakes	Double disc	Single disc

Other years 2008 2010

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail96%

Cornering70%

City riding15%

Daily riding15%

Touring10%

Two-up5%

Track55%

Best for: Built as a pure off-road enduro and motocross-style competition machine rather than a street or all-round bike.
Built for: A high-revving, aggressive single-cylinder thumper with race-bred suspension and razor-sharp handling for tackling trails, motocross tracks, and technical terrain.
Not ideal for: Not a good fit for daily commuting, highway touring, passengers, or riders seeking comfort and long-range range.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 940mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2010 Kawasaki KLX 450R, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 449.0 ccm
Power: 56.4 HP (42.1 kW)
Engine type: Single, four-stroke
Power/weight ratio: 0.4476 HP/kg (wet)
Bore x stroke: 96.0 x 62.1 mm
Compression: 12.0:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric & kick
Ignition: Digital AC-CDI
Valves per cylinder: 4
Lubrication system: Forced lubrication, semi and #8209;dry sump
Torque: Not on record - add it

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet multiplate

Dimensions & weight

Wheelbase: 1481 mm
Overall length: 2179 mm
Overall width: 820 mm
Overall height: 1255 mm
Seat height: 940 mm
Wet weight: 126.0 kg
Fuel capacity: 7.90 litres
Ground clearance: 320 mm
Dry weight: Not on record - add it

Chassis & suspension

Frame: Aluminum, perimeter design
Front suspension: 48mm inverted AOS-type cartridge fork with 22-way compression damping and 20-way rebound damping / 12.0 in.
Rear suspension: UNI-TRAK single shock system with 22-way low-speed, two-turn variable high-speed compression damping and 22-way rebound damping / 12.4 in.
Front wheel travel: 305 mm
Rear wheel travel: 315 mm
Rake (fork angle): 27.7°
Trail: 122 mm