Kawasaki KX 100 - 2013 Specifications and Reviews

The 2013 Kawasaki KX 100 is a lightweight motocross machine designed for young and developing riders transitioning to larger bikes. Powered by a nimble 99cc two-stroke engine, it delivers responsive performance and excellent handling characteristics. The KX 100 is renowned for its reliability, affordability, and effectiveness as an ideal stepping stone in competitive motocross racing.

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General information

CategoryCross / motocross
Year2013
ModelKawasaki KX 100

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
IgnitionDigital CDI
Fuel systemCarburettor. Keihin PWK28
Bore x stroke52.5 x 45.8 mm (2.1 x 1.8 inches)
Compression9.6:1
Engine typeSingle cylinder, two-stroke
Capacity:99.00 ccm (6.04 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions90/100-16
Front tyre dimensions70/100-19
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.
Trail104 mm (4.1 inches)
Rake (fork angle)27.0°
Frame typeHigh-tensile steel perimeter design with subframe member

Physical measures and capacities

Fuel capacity5.68 litres (1.50 gallons)
Wheelbase1,290 mm (50.8 inches)
Ground clearance381 mm (15.0 inches)
Overall width734 mm (28.9 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)

Other specs

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

Performance Profile & Rider Fit

Best For

Track75%
City5%
Cornering80%
Daily Riding10%
Touring5%
Passenger0%

Rider Profile

Best ForBest suited to younger or smaller riders with intermediate motocross experience progressing from a minicycle toward full-size bikes.
PurposeBuilt purely for closed-course motocross and off-road competition, not for street or general recreational riding.
Rider FitIts very low weight and compact seat height make it manageable for lighter or younger riders who would be overwhelmed by full-size motocross machines.
CharacterA high-revving two-stroke minicycle that rewards aggressive, active riding with sharp, flickable handling on the track.
Not Ideal ForNot suitable for taller or heavier adults, commuting, road use, or anyone seeking comfort and long-distance capability.

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

Rider Fit Visualizer

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

Feet:

At 871mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with tip-toe one foot on the 2013 Kawasaki KX 100, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: measured. 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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