Motocross Bikes
2003KTM 250 SX
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The 2003 KTM 250 SX is a lightweight motocross machine designed for intermediate riders seeking competitive performance in the 250cc class. Known for its nimble handling and responsive liquid-cooled engine, this bike excels in technical terrain and racing applications. Its compact dimensions and 97 kg weight make it accessible for developing riders transitioning to serious off-road competition.
- Capacity
- 249.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 5-speed
- Dry weight
- 97.2 kg
- Seat height
- 925 mm
- Power
- 24.9 HP (18.3 kW)
What’s new for the 2003 KTM 250 SX
vs the 2002| Spec | 2002 | 2003 |
|---|---|---|
| Dry weight | 101.0 kg (222.7 pounds) | 97.2 kg (214.3 pounds) |
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- Best for
- Built purely for motocross track riding and racing, not for street use or general transportation.
- Built for
- Sharp, explosive, and razor-agile, this bike rewards aggressive riding and precise throttle control with rapid acceleration bursts and flickable handling.
- Not ideal for
- This is not suitable for commuting, touring, carrying passengers, or riders seeking a comfortable, low-maintenance everyday motorcycle.
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
- 249.0 ccm
- Power
- 24.9 HP (18.3 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.2562 HP/kg (dry)
- Bore x stroke
- 66.4 x 72.0 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Kokusan digital 2K-1
- Lubrication system
- Mixture oil lubrication 1:60
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, operated hydraulically
Dimensions & weight
- Wheelbase
- 1475 mm
- Seat height
- 925 mm
- Dry weight
- 97.2 kg
- Fuel capacity
- 7.50 litres
- Ground clearance
- 385 mm
Chassis & suspension
- Frame
- Chromium molybdenum
- Front suspension
- WP-USD 48/26 MA/PA
- Rear suspension
- WP-PDS-DA shock absorber
- Front wheel travel
- 300 mm
- Rear wheel travel
- 335 mm
- Rake (fork angle)
- 24.0°
- 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
- 80/100-21
- Rear tyre
- 110/90-19
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 | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc |
| Dry weight | 101 kg | 97 kg | 98 kg | 96 kg | 96 kg | 96 kg |
| Seat height | 925 mm | 925 mm | 925 mm | 992 mm | 950 mm | 958 mm |
| Fuel capacity | 7.5 L | 7.5 L | 7.5 L | 7.5 L | 7.5 L | 7.2 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 KTM 250 SX?
The 2003 KTM 250 SX has a Capacity of 249.0 ccm (15.19 cubic inches).
What engine power does the KTM 250 SX have?
The 2003 KTM 250 SX has a Power of 24.9 HP (18.3 kW).
How many gears does the KTM 250 SX have?
The 2003 KTM 250 SX has a Gearbox of 5-speed.
How much does the KTM 250 SX weigh?
The 2003 KTM 250 SX has a Dry weight of 97.2 kg (214.3 pounds).
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