Motocross Bikes

2003Kawasaki KX65

36 fields on record

The 2003 Kawasaki KX65 is a small two-stroke motocross bike for young racers moving up from minis. Its liquid-cooled 64cc single makes 16.5 hp through a six-speed gearbox and chain. A 759 mm seat, 60 kg wet weight and 3.8-litre tank suit riders of around 8 to 12 years old.

Capacity: 64.0 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 57.0 kg
Seat height: 759 mm
Power: 16.5 HP (12.3 kW)

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What’s new for the 2003 Kawasaki KX65

vs the 2002

Spec	2002	2003
Power	16.7 HP (12.3 kW)	16.5 HP (12.3 kW)

Other years 2002 2003 2004 2005 2006 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

Off-road & trail95%

Cornering90%

City riding5%

Daily riding5%

Touring5%

Two-up0%

Track85%

Best for: It exists purely for motocross and off-road track competition, designed to teach throttle control, cornering technique and race lines on a scaled-down but genuine race platform.
Built for: The two-stroke engine and lightweight steel chassis give it a snappy, revvy, highly flickable character that rewards aggressive, active riding over smooth cruising.
Not ideal for: It is not suitable for adult riders, road use, commuting, touring or carrying a passenger, as it lacks the size, power, lighting and comfort for anything beyond junior off-road racing.

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 759mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2003 Kawasaki KX65, with a cramped knee angle of around 65 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 751-820 mm — Middle Ground →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 64.0 ccm
Power: 16.5 HP (12.3 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.2895 HP/kg (dry)
Bore x stroke: 44.5 x 41.6 mm
Compression: 8.4:1
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

Dimensions & weight

Wheelbase: 1120 mm
Overall length: 1590 mm
Overall width: 759 mm
Overall height: 955 mm
Seat height: 759 mm
Dry weight: 57.0 kg
Wet weight: 60.0 kg
Fuel capacity: 3.80 litres
Ground clearance: 305 mm

Chassis & suspension

Frame: Semi-double-cradle, high-tensile steel
Front suspension: 33mm leading axle conventional fork
Rear suspension: UNI-TRAK® single shock system
Front wheel travel: 210 mm
Rear wheel travel: 240 mm
Rake (fork angle): 27.0°
Trail: 61 mm

Brakes & wheels

Front brakes: Single disc
Rear brakes: Single disc
Front tyre: 60/90-14
Rear tyre: 80/90-12

Specs last verified against published sources: September 2026.

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	2008	2015	2021	2027
Capacity	64 cc	64 cc	65 cc	64 cc	65 cc	64 cc
Dry weight	57 kg	57 kg	57 kg	57 kg	57 kg	57 kg
Seat height	759 mm	759 mm	759 mm	759 mm	759 mm	759 mm
Fuel capacity	3.8 L	3.8 L	3.8 L	3.8 L	3.8 L	3.8 L