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Motocross Bikes

2009Kawasaki KX 250F Monster Energy

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The 2009 Kawasaki KX 250 F Monster Energy is a competitive motocross machine designed for intermediate to advanced riders seeking aggressive performance. Known for its potent liquid-cooled single-cylinder engine and responsive handling, this bike excels in both amateur and semi-professional racing environments with its nimble chassis and reliable power delivery.

Capacity
249.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Wet weight
104.3 kg
Seat height
955 mm
Power
24.9 HP (18.3 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 55Agility 96Comfort 20Off-road 98Touring 15Road manners 10
Off-road & trail98%
Cornering85%
City riding5%
Daily riding5%
Touring5%
Two-up0%
Track90%
Best for
Built purely for closed-course motocross racing and off-road jumps, berms, and rough terrain rather than any form of street use.
Built for
A razor-sharp, high-revving racer's tool with premium suspension and a stiff aluminum frame that rewards precise, committed riding.
Not ideal for
Not suitable for commuting, touring, carrying passengers, or any rider looking for comfort, low seat height, or road-legal equipment.

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 955mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2009 Kawasaki KX 250F Monster Energy, 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
249.0 ccm
Power
24.9 HP (18.3 kW)
Engine type
Single, four-stroke
Power/weight ratio
0.2387 HP/kg (wet)
Bore x stroke
77.0 x 53.6 mm
Compression
13.2:1
Cooling system
Liquid
Fuel system
Carburettor
Ignition
Digital CDI with K-TRIC throttle position sensor
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Dimensions & weight
Wheelbase
1471 mm
Overall length
2169 mm
Overall height
1270 mm
Seat height
955 mm
Wet weight
104.3 kg
Fuel capacity
7.90 litres
Ground clearance
340 mm
Dry weight
Not on record - add it
Chassis & suspension
Frame
Aluminum perimeter
Front suspension
47mm inverted twin-chamber telescopic fork with 16-way compression and rebound damping / 12.4 in.
Rear suspension
UNI-TRAK linkage system with 13-way low-speed and 2-turn high-speed compression damping, 17-way rebound damping and fully adjustable spring preload / 12.2 in.
Rake (fork angle)
27.7°
Brakes & wheels
Front brakes
Single disc. Two-piston calipers
Front brakes diameter
250 mm
Rear brakes
Single disc
Rear brakes diameter
240 mm
Front tyre
80/80-21
Rear tyre
100/90-19
Other
Color options
Ebony black

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 249 cc 249 cc
Seat height 955 mm 955 mm
Fuel capacity 7.9 L 7.9 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 KX 250F Monster Energy?

The 2009 Kawasaki KX 250F Monster Energy has a Capacity of 249.0 ccm (15.19 cubic inches).

What engine power does the Kawasaki KX 250F Monster Energy have?

The 2009 Kawasaki KX 250F Monster Energy has a Power of 24.9 HP (18.3 kW).

How many gears does the Kawasaki KX 250F Monster Energy have?

The 2009 Kawasaki KX 250F Monster Energy has a Gearbox of 5-speed.

How much does the Kawasaki KX 250F Monster Energy weigh?

The 2009 Kawasaki KX 250F Monster Energy has a Wet weight of 104.3 kg (229.9 pounds).

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