Motocross Bikes

2012Kawasaki KX85 II

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The 2012 Kawasaki KX85 II is a lightweight two-stroke dirt bike engineered for young and developing riders transitioning to intermediate competition. Its compact 70kg frame and responsive 85cc engine deliver accessible yet spirited performance, while excellent ground clearance and manageable seat height inspire confidence on technical terrain. This model is best recognized as an entry-level motocross platform that balances aggressive styling with beginner-friendly handling characteristics.

Capacity: 84.0 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 68.0 kg
Seat height: 870 mm
Power: Not on record
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What’s new for the 2012 Kawasaki KX85 II

vs the 2011

Spec	2011	2012
Front suspension	36 mm upside-down telescopic fork,	36 mm upside-down telescopic fork, with 16-way compression damping
Rear suspension	Bottom-Link Uni-Trak with adjustable	UNI-TRAK single shock system with 4 position compression and 20 position damping adjustment plus adjustable spring preload/ 10.8 in.
Front brakes	Single disc	Single disc. Hydraulic

Other years 2007 2008 2009 2010 2011 2012

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail95%

Cornering85%

City riding5%

Daily riding5%

Touring3%

Two-up0%

Track80%

Best for: Built purely for closed-course motocross racing and dirt track practice, not for any form of street or commuter use.
Built for: A high-strung two-stroke racer that rewards aggressive riding, quick throttle inputs, and precise line choice on jumps and berms.
Not ideal for: Not suitable for taller adults, highway travel, daily commuting, or anyone seeking comfort, passenger capacity, or long-distance touring.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 870mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with tip-toe one foot on the 2012 Kawasaki KX85 II, with a cramped knee angle of around 75 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 821-900 mm — Long Legs →

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Full specifications

Engine

Capacity: 84.0 ccm
Engine type: Single, two-stroke
Bore x stroke: 48.5 x 45.8 mm
Compression: 10.0:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: CDI
Lubrication system: Petrol mix
Power: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet multi-disc, manual

Dimensions & weight

Wheelbase: 1290 mm
Overall length: 1910 mm
Overall width: 735 mm
Overall height: 1105 mm
Seat height: 870 mm
Dry weight: 68.0 kg
Wet weight: 70.0 kg
Fuel capacity: 5.50 litres
Ground clearance: 340 mm

Chassis & suspension

Frame: High-tensile steel perimeter design with subframe member
Front suspension: 36 mm upside-down telescopic fork, with 16-way compression damping
Rear suspension: UNI-TRAK single shock system with 4 position compression and 20 position damping adjustment plus adjustable spring preload/ 10.8 in.
Front wheel travel: 275 mm
Rear wheel travel: 275 mm
Rake (fork angle): 27.0°
Trail: 103 mm