Kawasaki KX100 Monster Energy - 2009 Specifications and Reviews

The 2009 Kawasaki KX100 Monster Energy is a lightweight 99cc motocross machine designed for young riders and beginners entering competitive racing. Powered by a single-cylinder two-stroke engine with digital CDI ignition and Keihin carburettor, it delivers sharp power delivery ideal for developing riding skills on track. Its compact 871mm seat height and 71kg weight make it accessible and manageable for junior competitors.

2009
5 stars Average rating: 5 from 1 votes
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General information

CategoryCross / motocross
Year2009
ModelKawasaki KX100 Monster Energy

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
IgnitionDigital CDI
Fuel systemCarburettor. Keihin PWK28
Bore x stroke52.5 x 45.8 mm (2.1 x 1.8 inches)
Compression9.6:1
Stroke2
Engine typeSingle cylinder
Capacity:99.00 ccm (6.04 cubic inches)
 
 

Physical measures and capacities

Ground clearance381 mm (15.0 inches)
Overall length1,910 mm (75.2 inches)
Overall height1,105 mm (43.5 inches)
Seat height871 mm (34.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc71.0 kg (156.5 pounds)
 
 

Kawasaki KX100 Monster Energy dimensions and frame

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions90/90-16
Front tyre dimensions70/80-19
Rear suspensionUNI-TRAK® single shock system with 4-way compression and 18-way rebound damping plus adjustable spring preload / 10.8 in.
Front suspension36mm inverted telescopic cartridge fork with 18-way compression damping / 10.8 in.
Rake (fork angle)27.0°
Frame typeHigh-tensile steel perimeter design with subframe member

Speed and acceleration

Color optionsEbony
Fuel capacity5.67 litres (1.50 gallons)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track55%
City5%
Cornering80%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a small-displacement youth/beginner motocross machine, best suited to younger or lighter novice riders learning to race rather than experienced adult racers.
PurposeBuilt purely for closed-course motocross and off-road track riding, not for street use, commuting, or long-distance travel.
Rider FitIts low seat height, ultra-light weight, and compact dimensions make it ideal for smaller or lighter riders, typically young teens transitioning up from an 85cc bike.
CharacterA nimble, high-revving 2-stroke playbike that rewards aggressive throttle use and precise body positioning with sharp, flickable handling on rough terrain.
Not Ideal ForIt is not suitable for adult-sized riders, highway travel, carrying passengers, or anyone seeking comfort and touring capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2009 Kawasaki KX100 Monster Energy Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 871mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2009 Kawasaki KX100 Monster Energy, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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