2003KTM 300 EXC

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The 2003 KTM 300 EXC is a lightweight two-stroke enduro machine designed for serious off-road riders seeking maximum agility and simplicity. Known for its potent power delivery and exceptional maneuverability, this liquid-cooled single excels in technical terrain and enduro racing. Its compact dimensions and nimble handling make it ideal for experienced riders tackling challenging trails and competition events.

Capacity: 297.0 ccm
Engine: Single, two-stroke
Gearbox: 5-speed
Dry weight: 108.2 kg
Seat height: 925 mm
Power: 50.0 HP (36.8 kW)

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What’s new for the 2003 KTM 300 EXC

vs the 2002

Spec	2002	2003
Fuel capacity	9.50 litres (2.51 US gallons)	9.00 litres (2.38 US gallons)

Other years 2000 2001 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 & trail98%

Cornering60%

City riding15%

Daily riding15%

Touring20%

Two-up5%

Track25%

Best for: Built purely for serious enduro and trail riding, it excels at technical single-track, tight woods sections, and demanding terrain rather than any road-going use.
Built for: Its two-stroke engine gives a light, punchy, and revvy character with an eager, playful feel that thrives when pushed hard and flicked through tight terrain.
Not ideal for: This is not the right bike for commuters, passengers, long-distance tourers, or anyone wanting a comfortable, low-maintenance road-focused ride.

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 925mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2003 KTM 300 EXC, with a cramped knee angle of around 80 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 over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 297.0 ccm
Power: 50.0 HP (36.8 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.4621 HP/kg (dry)
Bore x stroke: 72.0 x 73.0 mm
Compression: 11.0:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Kick
Ignition: Kokusan digital 2K-3
Lubrication system: Mixture oil lubrication 1:60
Torque: Not on record - add it

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet multi-disc clutch, operated hydraulically

Dimensions & weight

Wheelbase: 1481 mm
Seat height: 925 mm
Dry weight: 108.2 kg
Fuel capacity: 9.00 litres
Ground clearance: 385 mm

Chassis & suspension

Frame: chromium molybdenum
Front suspension: WP-USD 48 MA
Rear suspension: WP-PDS-shock absorber
Front wheel travel: 300 mm
Rear wheel travel: 335 mm
Rake (fork angle): 27.0°
Trail: 63 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 260 mm
Rear brakes: Single disc
Rear brakes diameter: 220 mm
Front tyre: 90/90-21
Rear tyre: 140/80-18

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	2000	2003	2007	2014	2020	2027
Capacity	297 cc	297 cc	293 cc	293 cc	293 cc	293 cc
Dry weight	109 kg	108 kg	103 kg	102 kg	100 kg	105 kg
Seat height	925 mm	925 mm	925 mm	960 mm	960 mm	963 mm
Fuel capacity	9.5 L	9 L	8.5 L	9.5 L	9.5 L	9 L