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Home / Motorcycles /Motocross / 2017 KX85

2017 KX85


2017 KX85

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 2017 KX85 is the bike to beat.


Performance Boost

The 85cc 2-stroke high performance engine, the engine design features a low friction single ring piston for high power and sharp throttle response, the cylinder is designed with the Kawasaki KIPS system and features high performance combustion chamber design in the cylinder head.


Styled after the full-size KX250F/KX450F models, the KX85 features sleek, aggressive bodywork designed for stunning, aggressive looks. Its streamlined shape takes the ease of rider movement and weight positioning to a whole new level. Factory style graphics complement the sharp high performance design.

Larger Radiator for Extra Cooling

The KX85's radiator has received a boost in capacity and efficiency to raise its output from 5.6kW (2013MY) to a huge 8.5kW. The large radiator keeps the KX85 running at peak performance.

Front and Rear Petal Disc Brakes

For the ultimate in style, the KX85 features petal shaped discs just like the full size KX250F and KX450F models. A 220mm disc at the front and 184mm at the rear provide massive stopping power.

Front Fork

Front suspension performance has been stepped up to the next level thanks to Accumulating Shim-Type Valving - the same system as used on full-size KX models. Noticable improvements include light and heavy shock absorption and less underhang below the axle. Green Alumite* finish on the adjusters just like the factory racers.

Race ready Uni-Trak Rear Suspension

An updated compression damping adjustment mechanism on the rear shock absorber improves damping force at slower stroke speeds for greater riding stability.

Flat Seat Design

The flat seat design, combined with a lower positioned fuel cap, enables easier body transitioning from the front to the rear of the motorcycle.­

6-Speed Transmission

The KX's smooth-shifting six-speed transmission offers a positive shifting action along with rugged durability thanks to hard chromed shift forks and new bushings added to the second, third and fourth gears on the output shaft.

High-tensile steel perimeter frame

Setting the KX85 apart from the competition is its advanced, high-tensile steel perimeter frame. Its increased rigidity and lower centre of gravity (Thanks to a centralised fuel tank) adds up to superior handling and rider feedback.

Kawasaki Integrated Power Valve System

The KIPS system varies exhaust port height for increased horsepower and torque. A breather in KIPS cover relieves exhaust pressure for more precise KIPS valve action and improved high rpm performance. KIPS lever stopper spring absorbs governor "over stroke" for added durability. The KIPS governor has a long stroke to open the cylinder valves more fully. A governor spring and 8 mm bearing boss aid durability.


Thick base at the clutch housing fingers for increased durability.The right hand engine cover provides a separate clutch cover for quick servicing without removing the water pump.

Factory Racer Finishes

The rims are coated in black Alumite*, the rear suspension spring is lime green, the fork and rear shock adjusters have a candy lime green type II Alumite* finish just like the factory racers.
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
front 70/100-19 42M
rear 90/100-16 52M
Caster (rake) 29°
Trail 97 mm
Steering angle (left/right) 45° / 45°
Type 36 mm inverted telescopic fork
Compression damping 20-way


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
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.