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Enduro Bikes

2009Kawasaki KLX140L Monster Energy

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The 2009 Kawasaki KLX140L Monster Energy is a lightweight enduro bike designed for young and beginner riders seeking affordable off-road thrills. Its 144cc air-cooled single-cylinder engine delivers accessible performance with reliable carbureted fuel delivery. Known for its nimble handling and durable construction, the KLX140L remains an ideal entry-level platform for learning fundamental dirt bike skills.

Capacity
144.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Wet weight
95.0 kg
Seat height
800 mm
Power
14.1 HP (10.4 kW)
⇄ Compare with another bike + Add to garage All model years
Other years 2009 2010

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 15Agility 82Comfort 35Off-road 68Touring 15Road manners 25
Off-road & trail68%
Cornering45%
City riding30%
Daily riding25%
Touring12%
Two-up5%
Track10%
Best for
It's built for light trail riding, backyard fun, and learning off-road skills rather than serious performance work.
Built for
It has a playful, approachable character that rewards casual exploration over aggressive riding.
Not ideal for
It is not suitable for highway travel, tall or heavy adults seeking a full-size bike, or riders wanting real speed or long-distance touring capability.

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

Will it fit you?

Worked out in your browser - nothing is sent to us
At 800mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 Kawasaki KLX140L Monster Energy, with a cramped knee angle of around 70 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 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
144.0 ccm
Power
14.1 HP (10.4 kW)
Engine type
Single, four-stroke
Power/weight ratio
0.1484 HP/kg (wet)
Bore x stroke
58.0 x 54.4 mm
Compression
9.5:1
Cooling system
Air
Fuel system
Carburettor
Starting
Electric & kick
Ignition
CDI
Valves per cylinder
2
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Dimensions & weight
Wheelbase
1285 mm
Overall length
1895 mm
Overall width
790 mm
Overall height
1074 mm
Seat height
800 mm
Wet weight
95.0 kg
Fuel capacity
5.70 litres
Dry weight
Not on record - add it
Chassis & suspension
Frame
High-Tensile steel, box-section perimeter
Front suspension
33mm telescopic fork / 7.1 in.
Rear suspension
UNI-TRAK® linkage system and single shock with piggyback reservoir, fully adjustable preload and 22-way rebound damping / 7.1 in.
Rake (fork angle)
27.0°
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
220 mm
Rear brakes
Single disc
Rear brakes diameter
240 mm
Front tyre
70/80-19
Rear tyre
90/90-16
Other
Color options
Ebony

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 20092010
Capacity 144 cc 144 cc
Seat height 800 mm 800 mm
Fuel capacity 5.7 L 5.7 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the Kawasaki KLX140L Monster Energy?

The 2009 Kawasaki KLX140L Monster Energy has a Capacity of 144.0 ccm (8.79 cubic inches).

What engine power does the Kawasaki KLX140L Monster Energy have?

The 2009 Kawasaki KLX140L Monster Energy has a Power of 14.1 HP (10.4 kW).

How many gears does the Kawasaki KLX140L Monster Energy have?

The 2009 Kawasaki KLX140L Monster Energy has a Gearbox of 5-speed.

How much does the Kawasaki KLX140L Monster Energy weigh?

The 2009 Kawasaki KLX140L Monster Energy has a Wet weight of 95.0 kg (209.4 pounds).

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