2012 KX85

Creating Champions

Kawasaki has a long and illustrious history in the mini-bike class, famous for taking young, determined riders and turning them into the champions of the future - and that’s not about to change for 2012.

With its technologically advanced perimeter frame, potent 2-stroke engine and long travel, fully adjustable suspension, the KX85 sets the performance benchmark for the ultra-competitive 85 cm³ class, making it the ultimate machine for turning kids into Champions.


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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.

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.

36mm Inverted Forks

36mm inverted cartridge forks utilise a 49.5mm upper tube for increased rigidity and better steering response and control. 18-way compression damping adjustment enables precise dialling-in to suit a range of rider requirements.

suspension2
engine
brakes2

UNI-TRAK® Rear Suspension

Kawasaki’s unique UNI-TRAK® rear suspension system enables adjustable spring preload, compression damping and rebound damping for optimal setup and performance. A revised design for 2006 offers even greater durability.

85 cm³ Powerhouse

The KX85’s liquid-cooled, two-stroke, single-cylinder 84.6 cm³ engine has got the mumbo to get you to the front of the pack and keep you there. Featuring an Electrofusion-coated cylinder, 28mm PWK carburettor and carbon fibre reeds, it pumps out a broad range of strong, usable power.

Powerful Disc Brakes

A large, 220mm dual-caliper front disc offers powerful braking performance and is operated through a new, more comfortable brake lever for increased feel and control. The 184mm rear disc features a strong and lightweight pedal offering smooth operation.

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Engine

Type Liquid-cooled, 2-stroke Single with KIPS
Displacement 84.6 cm³
Bore and Stroke 48.5 x 45.8 mm
Compression ratio 10.0:1 (low speed); 9.2:1 (high speed)
Valve system 2-petal carbon-fibre piston reed valve
Fuel system Carburettor: Keihin PWK 28
Ignition Digital CDI
Starting Primary kick
Lubrication Pre-mix (32:1)

Drivetrain

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

Frame

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) 27°
Trail 89 mm
Steering angle (left/right) 45° / 45°

Suspension

Front: Type 36 mm upside-down telescopic fork
Compression damping 18-way
Rear: Type Bottom-Link Uni-Trak
Compression damping 4-way
Rebound damping 16-way
Spring preload Fully adjustable

Brakes

Front: 220 mm single disc with dual piston caliper
Rear: 184 mm single disc with single piston caliper

Dimensions

Overall length 1,820 mm
Overall width 735 mm
Overall height 1,055 mm
Wheelbase 1,255 mm
Ground clearance 340 mm
Seat height 840 mm
Curb mass 69 kg
Fuel capacity 5.5 litres

Performance

Maximum power 21.0 kW {28.5 PS}/ 12,000 rpm
Maximum torque 17.2 N⋅m {1.75 kgf⋅m}/ 11,000 rpm

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.

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