Motocross Bikes

2020KTM 250 SX-F

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The 2020 KTM 250 SX-F is a four-stroke motocross bike from KTM, a favourite in the MX2 class. Its liquid-cooled 249.9cc single makes 43 hp through a five-speed gearbox and chain. A 960 mm seat, 99 kg dry weight and 7-litre tank are built for the track.

Capacity: 249.9 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 99.0 kg
Seat height: 960 mm
Power: 43.0 HP (31.6 kW)

⇄ Compare with another bike ＋ Add to garage All model years

What’s new for the 2020 KTM 250 SX-F

vs the 2019

Spec	2019	2020
Torque	25.8 Nm (2.6 kgf-m or 19.0 ft.lbs) @ 8900 RPM	26.2 Nm (2.7 kgf-m or 19.3 ft.lbs) @ 9200 RPM

Other years 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 & trail97%

Cornering85%

City riding10%

Daily riding10%

Touring12%

Two-up5%

Track90%

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?

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Your height

Inseam (optional)

Units

At 960mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2020 KTM 250 SX-F, with a cramped knee angle of around 85 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 →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 249.9 ccm
Power: 43.0 HP (31.6 kW)
Torque: 26.2 Nm (2.7 kgf-m) @ 9200 RPM
Engine type: Single, four-stroke
Power/weight ratio: 0.4343 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: 99.0 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: 310 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
Comments: Torque is a rear-wheel dyno figure.

Specs last verified against published sources: October 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	2006	2011	2017	2020	2022	2027
Capacity	250 cc	249 cc	250 cc	250 cc	250 cc	250 cc
Dry weight	99 kg	100 kg	98 kg	99 kg	99 kg	101 kg
Seat height	925 mm	992 mm	960 mm	960 mm	950 mm	958 mm
Fuel capacity	7 L	7.5 L	7 L	7 L	7.5 L	7.2 L