Motocross Bikes
2018KTM 250 SX
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The 2018 KTM 250 SX is a lightweight two-stroke motocross bike engineered for competitive amateur and intermediate riders seeking aggressive performance on closed tracks. Known for its sharp handling and responsive power delivery, the 250 SX combines nimble agility with WP suspension technology to excel in technical terrain. Its compact dimensions and 95.4 kg weight make it ideal for riders prioritizing maneuverability and control.
- Capacity
- 249.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 5-speed
- Dry weight
- 95.4 kg
- Seat height
- 960 mm
- Power
- 24.9 HP (18.3 kW)
What’s new for the 2018 KTM 250 SX
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Seat height | 992 mm (39.1 inches) | 960 mm (37.8 inches) |
| Front suspension | WP USD closed cartridge Ø 48 mm | WP-USD, AER 48, Ø 48 mm |
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
- 0.2610 HP/kg (dry)
- Bore x stroke
- 66.4 x 72.0 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan
- Lubrication system
- Mixture oil lubrication 1:60
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, DDS multi-disc clutch, Brembo hydraulics
Dimensions & weight
- Wheelbase
- 1495 mm
- Seat height
- 960 mm
- Dry weight
- 95.4 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 375 mm
Chassis & suspension
- Frame
- Chrome-molybdenum steel central-tube
- 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°
- Trail
- 116 mm
Brakes & wheels
- Front brakes
- Single disc. Four-piston calipers.
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc. Two-piston calipers.
- Rear brakes diameter
- 220 mm
- Front tyre
- 80/100-21
- Rear tyre
- 110/90-19
Other
- Color options
- Orange/white/black
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 | 2007 | 2014 | 2018 | 2020 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc |
| Dry weight | 101 kg | 98 kg | 96 kg | 95 kg | 96 kg | 96 kg |
| Seat height | 925 mm | 925 mm | 992 mm | 960 mm | 950 mm | 958 mm |
| Fuel capacity | 7.5 L | 7.5 L | 7.5 L | 7 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 2018 KTM 250 SX has a Capacity of 249.0 ccm (15.19 cubic inches).
What engine power does the KTM 250 SX have?
The 2018 KTM 250 SX has a Power of 24.9 HP (18.3 kW).
How many gears does the KTM 250 SX have?
The 2018 KTM 250 SX has a Gearbox of 5-speed.
How much does the KTM 250 SX weigh?
The 2018 KTM 250 SX has a Dry weight of 95.4 kg (210.3 pounds).
Shop this bike
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The 2018 KTM 250 SX is a powerful and nimble dirt bike that offers a thrilling riding experience. With its 250cc 2-stroke engine, this motorcycle delivers impressive power and torque, making it perfect for tackling tough trails and challenging terrain. The lightweight chassis and agile handling make it easy to navigate through tight corners and twisty tracks, while the high-performance suspension provides a smooth and responsive ride. Whether you're a seasoned motocross rider or a beginner looking to step up your off-road game, the 2018 KTM 250 SX is sure to impress with its impressive performance and reliability.
In addition to its exceptional performance, the 2018 KTM 250 SX also boasts a stylish and modern design, with eye-catching graphics and a sleek silhouette that is sure to turn heads on the trail. The ergonomically designed seat and controls ensure a comfortable and intuitive riding experience, while the high-quality components and build quality make this dirt bike a durable and long-lasting investment. With its combination of power, handling, and style, the 2018 KTM 250 SX is a top choice for riders looking for a high-performance dirt bike that can handle anything the trail throws at it.
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