Motocross Bikes
2025KTM 350 SX-F
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The 2025 KTM 350 SX-F is a competitive mid-range motocross bike built for intermediate to advanced riders seeking a balanced powerplant. Its liquid-cooled 349cc four-stroke single delivers responsive performance with modern Keihin EFI and DOHC technology, while aggressive styling and lightweight construction make it ideal for both recreational and amateur racing applications.
- Capacity
- 349.7 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 102.4 kg
- Seat height
- 958 mm
- Power
- 50.0 HP (36.8 kW)
What’s new for the 2025 KTM 350 SX-F
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Front suspension | WP XACT-USD, Ø 48 mm | WP XACT-USD (AER), Ø 48 mm |
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
- 0.4883 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
- 1493 mm
- Seat height
- 958 mm
- Dry weight
- 102.4 kg
- Fuel capacity
- 7.20 litres
- Ground clearance
- 343 mm
Chassis & suspension
- Frame
- Central double-cradle-type 25CrMo4 steel. Aluminum-reinforced polyamide subframe.
- Front suspension
- WP XACT-USD (AER), Ø 48 mm
- Rear suspension
- WP XACT Monoshock with linkage
- Front wheel travel
- 310 mm
- Rear wheel travel
- 300 mm
- Rake (fork angle)
- 26.1°
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/black/grey
- Comments
- Connectivity.
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 | 2023 | 2025 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 350 cc | 350 cc | 350 cc | 350 cc | 350 cc | 350 cc |
| Dry weight | 104 kg | 105 kg | 100 kg | 100 kg | 102 kg | 102 kg |
| Seat height | 992 mm | 992 mm | 950 mm | 958 mm | 958 mm | 958 mm |
| Fuel capacity | 7.5 L | 7.5 L | 7 L | 7.2 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 2025 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 2025 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 2025 KTM 350 SX-F has a Gearbox of 5-speed.
How much does the KTM 350 SX-F weigh?
The 2025 KTM 350 SX-F has a Dry weight of 102.4 kg (225.8 pounds).
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