Motocross Bikes
2026KTM 450 SX-F
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The 2026 KTM 450 SX-F is a professional-grade motocross machine designed for elite racers and serious competitive riders. Powered by a 449.9cc liquid-cooled four-stroke engine producing 63 horsepower, it delivers aggressive performance and precise throttle control through advanced Keihin fuel injection. Known for its winning heritage in professional motocross, the 450 SX-F combines cutting-edge engineering with championship-proven reliability.
- Capacity
- 449.9 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 103.1 kg
- Seat height
- 958 mm
- Power
- 63.0 HP (46.3 kW)
What’s new for the 2026 KTM 450 SX-F
vs the 2025| Spec | 2025 | 2026 |
|---|---|---|
| Torque | 44.6 Nm (4.5 kgf-m or 32.9 ft.lbs) @ 7100 RPM | 46.8 Nm (4.8 kgf-m or 34.5 ft.lbs) @ 7700 RPM |
Other years
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 exclusively for motocross racing and serious off-road riding, not for street use or commuting.
- Built for
- A razor-sharp, high-revving single-cylinder racer that feels explosive and light, prioritizing agility and acceleration out of corners over outright top speed or stability.
- Not ideal for
- Not suitable for new riders, daily commuting, passengers, or anyone seeking comfort, storage, or long-distance touring capability.
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
- 449.9 ccm
- Power
- 63.0 HP (46.3 kW)
- Torque
- 46.8 Nm (4.8 kgf-m) @ 7700 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.6111 HP/kg (dry)
- Bore x stroke
- 95.0 x 63.4 mm
- Compression
- 13.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, DDS multi-disc clutch, Brembo hydraulics
Dimensions & weight
- Wheelbase
- 1493 mm
- Seat height
- 958 mm
- Dry weight
- 103.1 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. Brake calipers on floating bearings
- Rear brakes
- Single disc. Brake calipers on floating bearings
- Front tyre
- 80/100-21
- Rear tyre
- 110/90-19
Other
- Color options
- Orange/white/grey
- Comments
- Connectivity. Torque is a rear-wheel dyno figure.
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 | 2007 | 2012 | 2017 | 2022 | 2026 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 450 cc | 450 cc |
| Dry weight | 104 kg | 108 kg | 100 kg | 101 kg | 103 kg | 103 kg |
| Seat height | 925 mm | 992 mm | 960 mm | 950 mm | 958 mm | 958 mm |
| Fuel capacity | 8 L | 7.5 L | 7 L | 7.5 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 450 SX-F?
The 2026 KTM 450 SX-F has a Capacity of 449.9 ccm (27.45 cubic inches).
What engine power does the KTM 450 SX-F have?
The 2026 KTM 450 SX-F has a Power of 63.0 HP (46.3 kW).
How many gears does the KTM 450 SX-F have?
The 2026 KTM 450 SX-F has a Gearbox of 5-speed.
What is the torque of the KTM 450 SX-F?
The 2026 KTM 450 SX-F has a Torque of 46.8 Nm (4.8 kgf-m or 34.5 ft.lbs) @ 7700 RPM.
How much does the KTM 450 SX-F weigh?
The 2026 KTM 450 SX-F has a Dry weight of 103.1 kg (227.3 pounds).
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