2015 Kawasaki KX 100


0 Miles
In Stock
Malcolm Smith Motorsports
Stock #
KX 100



The Kawasaki KX™100 represents a natural step in the progression of any budding young motocross rider who is on the verge of outgrowing the KX™85, but maybe still needs to grow a few inches, gain a few pounds or simply get a little more seat time before jumping aboard a full-sized KX™250F. The new KX100 offers the perfect blend of a power and a larger chassis for an ideal learning curve en route to the big bikes.

At A Glance…

• Liquid-cooled, two-stroke, 99cc engine produces good power and torque

• Kawasaki Integrated Power-valve increases more mid-range torque and top-end power

• Jetting for the 28mm Keihin PWK carburetor promotes ideal fuel atomization, for quicker throttle response and a smoother power delivery

• Uni-Trak® rear suspension is fully adjustable for compression and rebound damping and spring preload

• Rigid 36mm inverted cartridge forks are 20-way adjustable for compression damping, and provide better steering response and control

• Six-speed transmission has chrome-finished shift fork ends to resist wear and seizing while bushings on the second, third and fourth gears on the output shaft increase durability

• Slim and narrow frame allows the rider to move around the motorcycle, while adjustable handlebars ensure a comfortable fit for a range of riders

• Industry-leading amateur racer support through Team Green™

Liquid-cooled, Two-stroke, Single-cylinder 99cc Engine

• Cylinder head gasket and gasket retention dowel prevents detonation, increasing reliability

• Piston with single-ring design (was two rings) reduces friction

• Lightweight Nikasil-coated cylinder with exhaust port shaped for flow and power

• Large outer diameter crankshaft is 83mm, increasing rigidity and improving durability

• Precisely shaped resin block added to crankshaft closes the gap around the machined area near the crank pin, reducing volume of the bottom-end to increase intake transfer for more power

• Intake and exhaust port bridges are machine-finished for reduced wear and improved reliability

• Rotor comes with 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 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

• Independent valves for each port replace three-piece design, increasing reliability and reducing maintenance

• Produces a broad powerband with more mid-range torque and excellent top-end power

• Breather in KIPS cover improves high-rpm and overrun performance


• Large right-side cutout improves airflow for increased power

28mm Keihin PWK Carburetor

• Jetting optimizes performance with engine tuning specs

• Large crescent slide positions the needle closer to intake ports for ideal fuel atomization, providing quicker throttle response and a smoother power delivery

• Carburetor adjustable for various conditions

Exhaust System

• Features large-diameter O-ring and groove on exhaust pipe for improved durability and easy installation

• Aluminum silencer is re-packable like larger KX models


• Thick-base clutch hub rides on needle bearings for smooth action

• Large, 91mm clutch plates add durability and control

• Clutch-release lever ratio is designed for light clutch lever action

• Clutch plate service cover simplifies maintenance and utilizes a metal-carbon composite gasket

Six-speed Transmission

• Positive shifting action and rugged durability

• Fifth and sixth gears ride on bushings for added reliability

• Shift forks are hard chrome-finished to resist wear and seizing

• Convenient oil-level window offers easy level checks

• Bushings on the second, third and fourth gears increase durability

High-tensile Steel Perimeter Frame

• High-tensile steel frame tubes have reinforcement in key areas to manage power output

• Perimeter design accommodates optimal intake/exhaust design

• Wide, steel footpegs offer added control and strength.

• Thick footpeg-mount brackets withstand today’s rigorous tracks

• Engine and chassis bolts feature rust-resistant coating

Uni-Trak® Rear Suspension

• KYB reservoir shock features black-anodized aluminum body

• Clicker-type compression damping adjuster allows for more precise damping adjustments

• Swingarm uses large cross-section beams for improved rigidity and control

• Cast-aluminum drive chain adjuster sections allow easy chain adjustments

• Shock is fully adjustable with 24-way compression and 21-way rebound damping, plus stepless spring preload

36mm Inverted Cartridge Fork

• Shim-type valving provides precise damping control

• Firm damping rates offer superior bottoming resistance

• Inverted fork is rigid, providing superior steering response and control

• Compression damping is 20-way adjustable

• Aluminum upper fork tubes measure 36mm in diameter for flex-free performance

• Revised axle clamp reduces under-hang for greater fork clearance in ruts

Disc Brakes

• Petal-type brake rotors (220mm front/184mm rear) provide powerful stopping ability

• Petal-type rotor design helps clean the brake pads for more consistent performance

• Front brake hose routing helps protect brake line; front guides are just like the big KXs

• Direct upward line simplifies brake bleeding maintenance

• Front brake lever shape offers optimum feel

• Forged-aluminum rear brake pedal is strong, lightweight and features two seals at the pivot for smooth operation and increased durability

• Provide strong braking power with minimal effort


• Black alumite-coated lightweight aluminum rims offer a factory look

• Rear hub features two bearings on the drive side for added durability

• Large rear-axle diameter for optimum rigidity

• Dunlop® Geomax MX51 tires provide optimal grip for a wide range of riding conditions


• Slim radiator shrouds and side panels allow good rider movement

• Flat seat with seamless seat cover and grippy material provide comfort and make it easier to shift weight

• 34.3" seat height is ideal for larger riders who are still growing

• Handlebars provide good leverage and comfort with a range of adjustment available

• Three-position handlebar risers offer STD, +5mm higher and +10mm higher bar positioning

• Two-position handlebar clamps offer STD, +10mm forward bar location for a total of six different handlebar positions with new handlebar risers

• Swingarm surface treatment matches big KX models and is easier to clean and refresh

• Angular front fender, angular rear fender and number plate design match big KX-styling

• Wraparound fork guards with embossed Kawasaki logo protect inner fork tubes and enhance styling

• Factory lime green “flow line” graphics

• Black alumite coatings mirror the reigning champion’s KX

• Grey clutch and ignition covers resist the signs of boot rub to help keep the KX looking fresh

  • Engine: Two-stroke single with KIPS®
  • Displacement: 99cc
  • Bore x Stroke: 52.5 x 45.8mm
  • Cooling: Liquid
  • Carburetion: Keihin PWK28
  • Induction: Two-petal reed valve
  • Compression ratio: 10.2:1 (low speed) – 8.7:1 (high speed)
  • Ignition: Digital CDI
  • Transmission: Six-speed
  • Final drive: Chain
  • Frame: High-tensile steel perimeter design with subframe member
  • Rake / trail: 29 deg. / 4.3 in.
  • Front suspension / wheel travel: 36mm inverted telescopic cartridge fork with 20-way compression damping / 10.8 in.
  • Rear suspension / wheel travel: Uni-Trak® single shock system with 24-way compression and 21-way rebound damping plus adjustable spring preload / 10.8 in.
  • Front tire: 70/100x19
  • Rear tire: 90/100x16
  • Front brake / rear brake: Hydraulic disc / disc
  • Overall length: 75.6 in.
  • Overall width: 30.1 in.
  • Overall height: 43.3 in.
  • Ground clearance: 13 in.
  • Seat height: 34.3 in.
  • Curb weight: 169.7 lb.
  • Fuel capacity: 1.32 gal.
  • Wheelbase: 51.6 in.
  • Color: Lime Green



Engine Type
Two-stroke single with KIPS®
Bore and Stroke
52.5 x 45.8mm
Compression Ratio
10.2:1 (low speed) – 8.7:1 (high speed)
Fuel System
Keihin PWK28
Digital CDI


Front Suspension
36mm inverted telescopic cartridge fork with 20-way compression damping
Front Brakes
Hydraulic disc
Front Tire
Rear Suspension
Uni-Trak® single shock system with 24-way compression and 21-way rebound damping plus adjustable spring preload
Rear Brakes
Rear Tire


Dry Weight
Curb Weight: 169.7 lb.
Fuel Capacity
1.32 gal.
51.6 in.
Ground Clearance
13 in.
Seat Height
34.3 in.
4.3 in.
29 deg.


Final Drive


Lime Green

*Price shown is MSRP or dealer’s sale price. Price shown does not include the following: manufacturer’s transportation charges, dealer markup, any government fees & taxes, any finance charges, dealer document processing charges, or electronic filing charges.