Motocross Bikes
2021Kawasaki KX85
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The 2021 Kawasaki KX85 is a lightweight motocross bike engineered for young and amateur riders developing their skills on the track. Its 84cc two-stroke single-cylinder engine delivers sharp power delivery ideal for learning racecraft, while the responsive handling and manageable seat height make it an accessible entry point into competitive off-road riding.
- Capacity
- 84.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 65.0 kg
- Seat height
- 830 mm
- Power
- Not on record
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What’s new for the 2021 Kawasaki KX85
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Wet weight | 69.0 kg (152.1 pounds) | 75.0 kg (165.3 pounds) |
| Seat height | 841 mm (33.1 inches) | 830 mm (32.7 inches) |
| Front suspension | 36mm inverted telescopic cartridge fork with 18-way compression damping / 10.8 in. | 36mm inverted telescopic cartridge fork with 20-way compression damping |
| Rear suspension | UNI-TRAK® single-shock system with 4-way compression and 16-way rebound damping, plus adjustable spring preload / 10.8 in. | Uni-Trak® single shock system with 24-way compression and 21-way rebound damping, plus adjustable spring preload |
| Front brakes | Single disc | Single disc. Petal disc with dual-piston caliper |
| Rear brakes | Single disc | Single disc. Petal disc with single-piston caliper |
Other years
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How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Purpose-built for motocross track racing and aggressive off-road riding, with a 2-stroke engine tuned for peaky, high-revving power delivery.
- Built for
- A snappy, high-strung 2-stroke that rewards clutch skill and revs, delivering sharp, flickable handling ideal for tight motocross circuits.
- Not ideal for
- Not suitable for taller adult riders, road use, commuting, or anyone wanting a comfortable, low-maintenance everyday bike.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 84.0 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 48.5 x 45.8 mm
- Compression
- 10.9:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI with digital advance
- Lubrication system
- Petrol mix
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multidisc
Dimensions & weight
- Wheelbase
- 1265 mm
- Overall length
- 1830 mm
- Overall width
- 765 mm
- Overall height
- 1100 mm
- Seat height
- 830 mm
- Dry weight
- 65.0 kg
- Wet weight
- 75.0 kg
- Fuel capacity
- 5.00 litres
- Ground clearance
- 290 mm
Chassis & suspension
- Frame
- High-tensile steel perimeter design with subframe member
- Front suspension
- 36mm inverted telescopic cartridge fork with 20-way compression damping
- Rear suspension
- Uni-Trak® single shock system with 24-way compression and 21-way rebound damping, plus adjustable spring preload
- Front wheel travel
- 275 mm
- Rear wheel travel
- 275 mm
- Rake (fork angle)
- 29.0°
- Trail
- 97 mm
Brakes & wheels
- Front brakes
- Single disc. Petal disc with dual-piston caliper
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc. Petal disc with single-piston caliper
- Rear brakes diameter
- 240 mm
- Front tyre
- 70/100-17
- Rear tyre
- 90/100-14
Other
- Color options
- Lime Green
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2002 | 2008 | 2015 | 2021 | 2027 |
|---|---|---|---|---|---|
| Capacity | 84 cc | 84 cc | 85 cc | 84 cc | 84 cc |
| Dry weight | 65 kg | 65 kg | 65 kg | 65 kg | 65 kg |
| Seat height | 841 mm | 841 mm | 841 mm | 830 mm | 831 mm |
| Fuel capacity | 5.7 L | 5.7 L | 5.7 L | 5 L | 5 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki KX85?
The 2021 Kawasaki KX85 has a Capacity of 84.0 ccm (5.13 cubic inches).
How many gears does the Kawasaki KX85 have?
The 2021 Kawasaki KX85 has a Gearbox of 6-speed.
How much does the Kawasaki KX85 weigh?
The 2021 Kawasaki KX85 has a Dry weight of 65.0 kg (143.3 pounds).
Shop this bike
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The 2021 Kawasaki KX85 is a powerful and high-performance motocross bike that is perfect for younger riders looking to take their skills to the next level. With a liquid-cooled 85cc engine and a six-speed transmission, this bike delivers impressive speed and control on the track. The adjustable suspension allows for a smooth and comfortable ride, while the lightweight frame makes it easy to handle in tight corners and jumps. Overall, the KX85 offers excellent power and handling for riders who are serious about motocross.
The 2021 Kawasaki KX85 is a top choice for young motocross riders looking for a competitive edge. With its powerful 85cc engine, adjustable suspension, and lightweight frame, this bike offers impressive performance on the track. Whether you're navigating tight corners or tackling big jumps, the KX85 delivers excellent speed and control. If you're a young rider looking to take your motocross skills to the next level, the KX85 is definitely worth considering.
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