Motocross Bikes
2018KTM 250 SX-F
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The 2018 KTM 250 SX-F is a competitive 250cc four-stroke motocross bike engineered for ambitious amateur and semi-pro riders seeking serious performance. Known for its potent engine, nimble handling, and race-ready suspension with WP components, it excels in both sand and hard-pack conditions. The lightweight 98.2kg chassis delivers responsive agility while maintaining the durability expected of KTM's championship-proven platform.
- Capacity
- 249.9 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 98.2 kg
- Seat height
- 960 mm
- Power
- 43.0 HP (31.6 kW)
Other years
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely as a motocross competition bike for closed circuits and tracks, with sharp handling and high-performance suspension rather than everyday usability.
- Built for
- A lightweight, race-bred single-cylinder machine defined by aggressive acceleration, precise cornering, and razor-sharp responsiveness over rough terrain.
- Not ideal for
- This bike is not suitable for riders wanting a comfortable commuter, a passenger-friendly machine, or a long-distance touring companion.
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
- 249.9 ccm
- Power
- 43.0 HP (31.6 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4379 HP/kg (dry)
- Bore x stroke
- 78.0 x 52.3 mm
- Compression
- 14.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS
- Valves per cylinder
- 4
- Lubrication system
- Forced oil lubrication with 2 Eaton pumps
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch / hydraulically operated
Dimensions & weight
- Wheelbase
- 1485 mm
- Seat height
- 960 mm
- Dry weight
- 98.2 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 370 mm
Chassis & suspension
- Frame
- 25CrMo4 steel central-tube frame
- Front suspension
- WP-USD, AER 48, Ø 48 mm
- Rear suspension
- WP shock absorber with linkage
- Front wheel travel
- 300 mm
- Rear wheel travel
- 300 mm
- Rake (fork angle)
- 26.5°
Brakes & wheels
- Front brakes
- Single disc. Brake calipers on floating bearings
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc. Brake calipers on floating bearings
- Rear brakes diameter
- 220 mm
- Front tyre
- 80/100-21
- Rear tyre
- 110/90-19
Other
- Color options
- Orange/white/black
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 | 2006 | 2011 | 2016 | 2018 | 2020 | 2025 |
|---|---|---|---|---|---|---|
| Capacity | 250 cc | 249 cc | 250 cc | 250 cc | 250 cc | 250 cc |
| Dry weight | 99 kg | 100 kg | 99 kg | 98 kg | 99 kg | 102 kg |
| Seat height | 925 mm | 992 mm | 960 mm | 960 mm | 960 mm | 958 mm |
| Fuel capacity | 7 L | 7.5 L | 7 L | 7 L | 7 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-F?
The 2018 KTM 250 SX-F has a Capacity of 249.9 ccm (15.25 cubic inches).
What engine power does the KTM 250 SX-F have?
The 2018 KTM 250 SX-F has a Power of 43.0 HP (31.6 kW).
How many gears does the KTM 250 SX-F have?
The 2018 KTM 250 SX-F has a Gearbox of 5-speed.
How much does the KTM 250 SX-F weigh?
The 2018 KTM 250 SX-F has a Dry weight of 98.2 kg (216.5 pounds).
Shop this bike
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The 2018 KTM 250 SX-F is a high-performance motocross bike designed for professional riders and experienced enthusiasts. This lightweight and agile machine is powered by a 250cc engine with advanced fuel injection technology, delivering strong and smooth power throughout the rev range. The bike features top-of-the-line suspension and handling, making it a competitive choice for racing and off-road riding. With its responsive throttle, precise steering, and durable construction, the KTM 250 SX-F offers an exhilarating riding experience that's sure to impress even the most demanding riders.
Overall, the 2018 KTM 250 SX-F is a top contender in the motocross segment, offering a winning combination of power, handling, and durability. Its advanced technology and high-performance components make it a formidable choice for competitive racing and off-road adventures. Whether you're hitting the track or exploring the trails, this KTM model is sure to deliver an adrenaline-pumping experience for riders who demand nothing but the best from their bike.
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