Standard Features


Taking the Next Step

As motocross racers begin to transition from the mini categories into full-sized competition, the KX™100 provides the ride that will both enhance and simplify this often-times difficult move. Engineered to help riders transition as they see both their skills and their physical presence changing, the KX100 lets them focus all of their attention on refining their own capabilities, not the constant need to manhandle an excessively large and powerful 250.


Model Year
Starting at MSRP


75.2 in.
43.5 in.
28.9 in.
156.5 lbs.
Ground Clearance
15 in.
50.8 in.
Seat Height
34.3 in.


2-stroke single with KIPS®, 2-petal reed valve induction
99 cc
Bore x Stroke
52.5 x 45.8 mm
Compression Ratio
Low Speed: 9.6:1
High Speed: 8.8:1
Keihin PWK28
Fuel Tank Capacity
1.5 gal.
Digital CDI


Final Drive


Front: Hydraulic disc
Rear: Disc
Front: 70/100 x 19
Rear: 90/100 x 16


High-tensile steel perimeter design with subframe member
Front: 36 mm inverted telescopic cartridge fork with 18-way compression damping; 10.8 in. travel
Rear: UNI-TRAK® 1-shock system with 4-way compression and 18-way rebound damping plus adjustable spring preload; 10.8 in. travel
4.1 in.


Lime Green

Standard Features

At a Glance…
 99 cc two-stroke engine is liquid-cooled to help assure even running temperatures, consistent power output and greater reliability  
 Kawasaki Integrated Power Valve System varies exhaust port height, helping to produce a broad powerband with more low-end torque while retaining excellent top-end power  
 Six-speed transmission offers positive shifting action and rugged durability; hard chrome-finished shift forks resist wear and seizure  
 Clutch uses 119 mm diameter plates for good feel and durability  
 Swingarm uses large cross-section beams for more rigidity  
 Uni-Trak® rear suspension features a shock with adjustable compression, rebound damping and spring preload, while the 36 mm inverted cartridge fork has 18-way adjustable compression damping  
 Industry-leading amateur racer support through Team Green™  
Liquid-cooled, 99 cc, Two-stroke Engine
 Clutch cover is separate from the water pump cover for quick servicing  
 Liquid-cooling helps to maintain reliability, even-running temperatures and consistent power output  
 Bridges between intake and exhaust ports are machine-finished for increased durability  
 Rotor utilizes rare-earth magnets – the unitized piece is small, light and more efficient; low inertial moment improves low-rpm response  
 Connecting rod big-end bearing has a more rigid cage for improved durability  
 Intake port shape and cylinder skirt allow cooling air into the crankcase chamber  
 Primary gear is secured using a lock-nut to help reduce mechanical noise  
 Metafoam gaskets for the generator and water pump covers improve sealing  
Kawasaki Integrated Power Valve System (KIPS®)
 KIPS system varies exhaust port height for increased horsepower and torque at all rpm  
 Produces a broad powerband with more low-end torque while retaining excellent top-end power  
 Breather in KIPS cover improves high-rpm and overrun performance  
28 mm Keihin Carburetor
 Crescent slide carburetor puts the needle closer to the intake ports for optimum throttle response  
 Adjustable for various conditions  
 Clutch hub rides on needle bearings for smooth action  
 Large clutch plates measure 119 mm in diameter for added durability and control  
 Clutch-release lever ratio provides light clutch lever action  
 Thick clutch basket housing improves durability  
 Clutch plate service cover simplifies maintenance and utilizes a metal-carbon composite gasket  
Six-speed Transmission
 Fifth and sixth gears ride on bushings for added reliability  
 Positive shifting action and rugged durability  
 Allows the engine’s full potential to be realized  
 Oil level window allows easy level check  
 Hard chrome-finished shift forks resist wear and seizure  
High-tensile Steel Perimeter Frame
 Wide, steel footpegs for better control and added strength  
 Thick footpeg brackets withstand today’s rigorous tracks  
 Engine and chassis bolts feature rust-resistant coating  
Fuel Tank
 Positioned low in the frame to lower center of gravity and improve handling  
Uni-Trak® Rear Suspension
 Swingarm uses large cross-section beams for more rigidity and control  
 Swingarm incorporates cast aluminum drive chain adjuster sections for easy chain adjustments  
 Flanged collars at the bearings to protect seals from mud  
 Fully adjustable shock with compression damping, rebound damping and spring preload adjustability  
36 mm Inverted Cartridge Fork
 Aluminum upper tubes are 49.5 mm in diameter for excellent control and steering response  
 Compression damping is 18-way adjustable  
Disc Brakes
 Front brake lever shape offers better feel  
 Forged-aluminum rear brake pedal is strong, lightweight and features two seals at the pivot for smooth operation  
Lightweight Aluminum Rims
 Rear hub features two wheel bearings on the drive side for durability  
 Thick spokes are used in the front and rear for strength, and require less adjustment  
 Lightweight aluminum rims  
 Aggressive Kawasaki graphics compliment its black frame and wheels, just like the larger KX models  
 Silver clutch and ignition covers resist the signs of boot rub to help keep the KX looking fresh, longer  


Lime Green
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer vehicle freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.
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