The KX85 motorcycles brings Kawasaki’s proven performance to the amateur ranks. Proportionate power of the 84 cc engine and race-ready technology grant young racers the championship-winning advantage they need to sharpen their skills.

Proven Performance

High-performance 84 cc two-stroke engine produces crisp, responsive power and offers proven durability to finish each ride with confidence. A close ratio six-speed transmission and manual clutch allow aspiring racers to hone their shifting skills and get maximum performance out of the KX85 motorcycle.

Stronger Transmission

The all-new 6-speed transmission of the KX112 also benefits the KX85.

Exceptional Control

o36 mm inverted cartridge fork features adjustable compression damping, enabling excellent tuning throughout the impressive 275 mm (10.8 in) of travel. The Uni Trak rear suspension is just as versatile with a fully-adjustable KYB shock, also featuring 275 mm (10.8 in) of travel.

Built to Fit

Feeling at one with your machine is extremely important for speed and control – especially for aspiring racers learning how to get the most from themselves and their bikes. Similar to Kawasaki’s full-size motocrossers, the KX85’s bodywork forms a slim ergonomics package that facilitates rider movement, while contributing to strong factory looks.

Revised Shroud Design

Shrouds designed to accommodate a wider range of riders make it easier for riders to find a good fit on the bike. The new shroud design also directs air to the radiator more efficiently, contributing to cooling performance.Non-current colour shown

Adjustable Handlebar Position

KX85 motorcycle grows with your young racer thanks to the ERGO-FIT system. Featuring six-position adjustable handlebar mounts, ERGO-FIT enables riders to set their ideal ride position.


  • Engine

    2-stroke Single with KIPS

  • Displacement

    84 cc

  • Bore x Stroke

    48.5 × 45.8 mm

  • Compression Ratio

    10.9:1 (low speed), 9.0:1 (high speed)

  • Induction

    Piston reed valve

  • Fuel System

    Carburettor: Keihin PWK28

  • Ignition


  • Starting

    Primary kick

  • Cooling


  • Lubrication

    Pre-mix (32:1)

  • Transmission

    6-speed, return

  • Primary Reduction Ratio

    3.400 (68/20)

  • Gear Ratio: 1st

    2.538 (33/13)

  • Gear Ratio: 2nd

    1.875 (30/16)

  • Gear Ratio: 3rd

    1.500 (27/18)

  • Gear Ratio: 4th

    1.250 (25/20)

  • Gear Ratio: 5th

    1.090 (24/22)

  • Gear Ratio: 6th

    0.956 (22/23)

  • Final Reduction Ratio

    3.923 (51/13)

  • Clutch

    Wet multi-disc, manual

  • Final Drive



  • Frame

    Perimeter, high-tensile steel

  • Front Suspension

    o36 mm inverted fork with adjustable compression damping

  • Rear Suspension

    Uni Trak with adjustable compression and rebound damping and adjustable spring preload

  • Front Wheel Travel

    275 mm

  • Rear Wheel Travel

    275 mm

  • Rake


  • Trail

    108 mm

  • Steering Angle (L/R)

    45? / 45?

  • Front Tyre

    70/100-19 42M

  • Rear Tyre

    90/100-16 51M

  • Front Brake/s

    o220 mm petal disc

  • Front Caliper/s


  • Rear Brake

    o184 mm petal disc

  • Rear Caliper



  • Dimensions (LxWxH)

    1,920 × 765 × 1,150 mm

  • Wheelbase

    1,310 mm

  • Road Clearance

    330 mm

  • Seat Height

    870 mm

  • Curb Mass

    77.0 kg

  • Mass without Fuel

    73.3 kg

  • Fuel Capacity

    5.0 litres

  • Model Code


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