The Kawasaki KX85 is effectively the two-wheeled version of the KFX90. Regardless, both vehicles offer plenty of fun, whether you’re riding a motocross bike or an off-road ATV.

The KFX90 ATV is well-suited to the dimensions of those 12 and over, largely thanks to a comfortable set-up that emphasizes looks and comfort for young riders. The KFX90 also has a simple and friendly 89cc four-stroke engine that provides compliant power delivery with a healthy mid-range, all while mated to a continuously variable transmission that eliminates the need for a shift lever. Dual front shocks and a swingarm rear suspension are also part of the ride package, helping make the ride more enjoyable by cushioning the rider against bumps.

Another important feature of the KFX90 is the keyed ignition switch, a set-up that prevents the use of the ATV without the key. This feature is important to parents who value the security of their child’s ATV. There’s also a throttle limiting screw and a CVT transmission speed limited that parents can use to ensure the safety of their kids when they’re riding the KFX90.

For those young kids that have an adventurous bone in their bodies, the Kawasaki KFX90 is an ideal ATV to take for all those thrill-seeking exploits.

Find out more about the Kawasaki KFX90 after the jump.

  • 2012 Kawasaki KFX 90
  • Year:
  • Make:
  • Model:
  • Engine:
    four-stroke engine
  • Transmission:
    continuously variable transmission
  • Displacement:
    89 L


2012 Kawasaki KFX 90 Exterior
- image 430023
  • Reliable 89cc air-cooled overhead-cam four-stroke engine
  • Produces user-friendly power that’s easily managed by entry-level riders
  • Electric push-button starting with kick-start backup
  • Electrically operated enrichening circuit automatically opens an extra fuel passage during cranking for easy starting
  • Equipped with a USFS-approved spark arrestor

Chassis and Suspension

2012 Kawasaki KFX 90 High Resolution Exterior
- image 430046
  • Aggressive sport ATV design similar to larger KFX models
  • Wide stance for stable handling
  • Steel chassis for durability
  • Full floorboards
  • A-arm front suspension with dual shocks
  • Swingarm rear suspension
  • 3.9 in. ground clearance at the rear axle
  • Maxxis tires
  • 18 x 7-8 front, 18 x 9-8 rear


2012 Kawasaki KFX 90 Exterior
- image 430025
  • Continuously variable automatic transmission (CVT)
  • Chain drive

Simple Brakes

2012 Kawasaki KFX 90
- image 430041
  • Two front drum brakes and a rear disc brake for excellent stopping power
  • All three brakes are activated by the handlebar-mounted brake levers to simplify operation


2012 Kawasaki KFX 90 Exterior
- image 430028

The KFX90 is also equipped with premium features like electric starting, a single-shock rear suspension, independent A-arm front suspension, and a single rear disc, supplemented by dual front drum brakes.


2012 Kawasaki KFX 90 Exterior
- image 430029
Engine Air-cooled, four-stroke, single cylinder
Displacement 89cc
Bore x Stroke 47.0 x 51.8mm
Compression ratio 10.0:1
Carburetion Keihin carburetor
Ignition Solid state CDI
Transmission Continuously Variable Automatic
Final drive Chain
Frame Type Double cradle, steel
Suspension front / wheel travel Single A-arm with twin shock absorbers / 2.8 in.
Suspension rear / wheel travel Swingarm with single shock absorber / 2.9 in.
Front Tire Size AT18x7-8 tubeless
Rear Tire Size AT18x9-8 tubeless
Front brakes / rear brakes Dual mechanical drums / Hydraulic disc
Overall length 56.1 in.
Overall width 35.6 in.
Wheelbase 38.0 in.
Ground clearance At rear axle – 3.9 in.
Track Front/Rear 26.8 / 26.0 in.
Fuel capacity 1.5 gal.
Curb weight 262 lbs.
Color Choices Lime Green


Uniontown Kawasaki----"Parents appreciate quality products that are designed to fit the needs of their growing youth. A wide stance, large tires, and full floorboards allow the KFX90 to offer stable and confidence-inspiring handling traits. Its friendly performance and big-bike styling make the KFX90 ATV a smart choice for riders 12 years and older. At the core of the KFX90 is a reliable and environmentally friendly four-stroke air-cooled engine that provides healthy mid-range performance with an easy-to-use power delivery."

Kirby Garlitos
Automotive Aftermarket Expert -
Kirby’s first exposure into the world of automobiles happened when he caught Knight Rider on television as a five-year old boy. David Hasselhoff didn’t leave much of an impression on him (that happened later on in Baywatch), but KITT certainly did. To this day, Kirby remains convinced that he will one day own a car with the same ‘spirit’ as the original KITT (not the 2008 monstrosity). He doesn't know when that will be, but until then, he’s committed to expressing his love for KITT, and all cars for that matter, here at TopSpeed.  Read More
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