Motocross Bikes
2003Kawasaki KX85-II
38 fields on record
The 2003 Kawasaki KX85-II is the big-wheel version of Kawasaki's junior motocross bike. Its liquid-cooled 84cc two-stroke single drives through a six-speed gearbox and chain. An 870 mm seat, 70 kg wet weight and 5.5-litre tank suit taller young riders.
- Capacity
- 84.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 68.0 kg
- Seat height
- 870 mm
- Power
- 28.5 HP (21.0 kW)
Other years
2002
2003
2004
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross and off-road track competition, delivering sharp two-stroke power in a lightweight package rather than any road or commuting use.
- Built for
- A high-revving, aggressive two-stroke that rewards active riding, clutch control, and commitment on jumps and berms.
- Not ideal for
- It is not suitable for taller or heavier adult riders, road use, commuting, or anyone wanting comfort or long-distance capability.
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
- Power
- 28.5 HP (21.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.4191 HP/kg (dry)
- 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
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,
- Rear suspension
- Bottom-Link Uni-Trak with adjustable
- Front wheel travel
- 36 mm
- Rear wheel travel
- 275 mm
- Rake (fork angle)
- 27.0°
- Trail
- 103 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 220 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 184 mm
- Front tyre
- 70/100-19
- Rear tyre
- 90/100-16
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 | 2003 | 2010 | 2016 | 2021 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 84 cc | 84 cc | 84 cc | 84 cc | 84 cc | 84 cc |
| Dry weight | 68 kg | 68 kg | 68 kg | 68 kg | 68 kg | 68 kg |
| Seat height | 870 mm | 870 mm | 870 mm | 870 mm | 870 mm | 865 mm |
| Fuel capacity | 5.5 L | 5.5 L | 5.5 L | 5 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-II?
The 2003 Kawasaki KX85-II has a Capacity of 84.0 ccm (5.13 cubic inches).
What engine power does the Kawasaki KX85-II have?
The 2003 Kawasaki KX85-II has a Power of 28.5 HP (21.0 kW).
How many gears does the Kawasaki KX85-II have?
The 2003 Kawasaki KX85-II has a Gearbox of 6-speed.
How much does the Kawasaki KX85-II weigh?
The 2003 Kawasaki KX85-II has a Dry weight of 68.0 kg (149.9 pounds).
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