Motocross Bikes
2020KTM 350 SX-F
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The 2020 KTM 350 SX-F is a motocross bike that mixes the light feel of a 250 with much of the pull of a 450. Its liquid-cooled 349.7cc four-stroke single makes 50 hp through a five-speed gearbox and chain. A tall 950 mm seat, 99.5 kg dry weight and 7-litre tank suit racing.
- Capacity
- 349.7 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 99.5 kg
- Seat height
- 950 mm
- Power
- 50.0 HP (36.8 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross and off-road competition, excelling at jumps, berms, and technical terrain rather than any road use.
- Built for
- A sharp, high-revving single-cylinder engine paired with a featherweight chassis gives it razor-sharp agility and instant throttle response for aggressive riders.
- Not ideal for
- This is not a fit for commuters, touring riders, passengers, or anyone seeking a comfortable, road-legal, low-maintenance 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
- 349.7 ccm
- Power
- 50.0 HP (36.8 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.5025 HP/kg (dry)
- Bore x stroke
- 88.0 x 57.5 mm
- Compression
- 14.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS
- Lubrication system
- Forced oil lubrication with 2 Eaton pumps
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, Brembo hydraulics
Dimensions & weight
- Wheelbase
- 1485 mm
- Seat height
- 950 mm
- Dry weight
- 99.5 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 370 mm
Chassis & suspension
- Frame
- 25CrMo4 steel central-tube
- 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
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- 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 | 2011 | 2015 | 2019 | 2020 | 2023 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 350 cc | 350 cc | 350 cc | 350 cc | 350 cc | 350 cc |
| Dry weight | 104 kg | 105 kg | 100 kg | 100 kg | 100 kg | 102 kg |
| Seat height | 992 mm | 992 mm | 950 mm | 950 mm | 958 mm | 958 mm |
| Fuel capacity | 7.5 L | 7.5 L | 7 L | 7 L | 7.2 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 350 SX-F?
The 2020 KTM 350 SX-F has a Capacity of 349.7 ccm (21.34 cubic inches).
What engine power does the KTM 350 SX-F have?
The 2020 KTM 350 SX-F has a Power of 50.0 HP (36.8 kW).
How many gears does the KTM 350 SX-F have?
The 2020 KTM 350 SX-F has a Gearbox of 5-speed.
How much does the KTM 350 SX-F weigh?
The 2020 KTM 350 SX-F has a Dry weight of 99.5 kg (219.4 pounds).
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