KX85 - The Bike That Builds Champions

The 2017 KX85 is here and ready to continue the revolution. Kawasaki engineers have gone all-out to ensure the KX85 has what it takes to stamp its dominance on the Junior MX circuit.

With a high performance engine and race ready suspension, adjustable handlebar positioning and slim bodywork, the 2021 KX85 is the bike to beat.


Type Liquid-cooled, 2-stroke Single with KIPS
Displacement 84 cm³
Bore and Stroke 48.5 x 45.8 mm
Compression ratio 10.9:1 (low speed); 9.0:1 (high speed)
Valve system Piston reed valve
Fuel system Carburettor: Keihin PWK 28
Ignition Digital CDI
Starting Primary kick
Lubrication Pre-mix (32:1)
Transmission 6-speed, return
Final drive Chain
Primary reduction ratio 3.400 (68/20)
Gear ratios: 1st 2.538 (33/13)
  2nd 1.875 (30/16)
  3rd 1.500 (27/18)
  4th 1.250 (25/20)
  5th 1.090 (24/22)
  6th 0.956 (22/23)
Final reduction ratio 3.571 (50/14)
Clutch Wet multi-disc, manual
Type Perimeter, high-tensile steel
Wheel travel: front 275 mm
  rear 275 mm
Tyre: front 70/100-17 40M
  rear 90/100-14 49M
Caster (rake) 29°
Trail 97 mm
Steering angle (left/right) 45° / 45°


Front: Type 36 mm inverted telescopic fork
  Compression damping 20-way
Rear: Type Uni-Trak
  Compression damping 24-way
  Rebound damping 21-way
  Spring preload Fully adjustable
Front: 220 mm petal disc with dual piston caliper
Rear: 184 mm petal disc with single piston caliper
Overall length 1,830 mm
Overall width 765 mm
Overall height 1,100 mm
Wheelbase 1,265 mm
Ground clearance 290 mm
Seat height 830 mm
Curb mass 75 kg includes all fluids at correct levels and full fuel tank
Fuel capacity 5.0 litres

 The specifications mentioned here apply to and have been achieved by production models under standard operating conditions. We intend only to give a fair description of the vehicle and its performance capabilities but these specifications may not apply to every machine supplied for sale. Kawasaki Heavy Industries, Ltd. reserves the right to alter specifications without prior notice. Equipment illustrated and specifications may vary to meet individual markets.

2022 KX85 - Motocross - Coast Powersports - Yamaha, KTM, Kawasaki motorcycles - Adelaide, South Australia