Kawasaki KX 85 - 2012 Specifications and Reviews

The 2012 Kawasaki KX 85 is a lightweight motocross machine designed for junior riders and beginners transitioning into competitive off-road racing. Known for its nimble handling and responsive suspension with extensive adjustability, it delivers the performance and agility young pilots need to develop skills. The compact frame and low seat height make it accessible while maintaining serious race-ready credentials.

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General information

CategoryCross / motocross
Year2012
ModelKawasaki KX 85
 
 

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
IgnitionDigital CDI
Fuel systemCarburettor. Keihin PWK28
Bore x stroke48.5 x 45.8 mm (1.9 x 1.8 inches)
Compression10.0:1
Engine typeSingle cylinder, two-stroke
Capacity:84.00 ccm (5.13 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesSingle disc. Hydraulic
Rear tyre dimensions90/100-14
Front tyre dimensions70/100-17
Rear suspensionUNI-TRAK single shock system with 4 position compression and 20 position damping adjustment plus adjustable spring preload/ 10.8 in.
Front suspension36mm inverted telescopic cartridge fork with 18 position compression damping adjustment/ 10.8 in.
Trail89 mm (3.5 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)
Wheelbase1,255 mm (49.4 inches)
Ground clearance340 mm (13.4 inches)
Overall width734 mm (28.9 inches)
Overall length1,821 mm (71.7 inches)
Overall height1,054 mm (41.5 inches)
Seat height841 mm (33.1 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc69.0 kg (152.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsLime Green
Factory warranty6 months

Performance Profile & Rider Fit

Best For

Track90%
City5%
Cornering90%
Daily Riding5%
Touring3%
Passenger0%

Rider Profile

Best ForThis is a small-wheel youth motocross machine best suited to younger, developing riders transitioning from an 65cc/80cc up toward full-size bikes, not adult riders.
PurposeBuilt purely for closed-course motocross racing and off-road training, not for street use or general recreation.
Rider FitIts light 69 kg weight and 841 mm seat height make it manageable for smaller, lighter riders, typically pre-teens to early teens.
CharacterA high-revving two-stroke racer that rewards aggressive riding, clutch work, and precise line choice on the track.
Not Ideal ForNot suitable for adult riders, highway or commuting use, passengers, or anyone wanting comfort and touring capability.

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

Rider Fit Visualizer

2012 Kawasaki KX 85 Rider Ergonomics Assessment

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

Feet:

At 841mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2012 Kawasaki KX 85, with a cramped knee angle of around 70 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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