Motocross Bikes
2017KTM 450 SX-F
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The 2017 KTM 450 SX-F is a high-performance four-stroke motocross bike engineered for competitive riders and serious enthusiasts. Known for its potent 450cc engine, precise handling, and premium WP suspension components, it delivers aggressive power and control on demanding terrain. Its electric starter, aggressive geometry, and advanced braking system make it a top choice for racers seeking race-winning performance.
- Capacity
- 449.3 ccm
- Engine
- Single, four-stroke
- Gearbox
- 4-speed
- Dry weight
- 100.2 kg
- Seat height
- 960 mm
- Power
- 56.0 HP (41.2 kW)
Other years
2007
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2012
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2015
2016
2017
2018
2019
2020
2021
2022
2023
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2025
2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for motocross racing and aggressive off-road riding on tracks and rough terrain.
- Built for
- A light, explosive, high-revving single-cylinder racer that rewards aggressive input with razor-sharp agility and jump-ready suspension.
- Not ideal for
- This bike is not suited to riders wanting a comfortable commuter, long-distance tourer, or a passenger-friendly ride.
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
- 449.3 ccm
- Power
- 56.0 HP (41.2 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.5589 HP/kg (dry)
- Bore x stroke
- 95.0 x 63.4 mm
- Compression
- 12.8:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS
- Valves per cylinder
- 4
- Lubrication system
- Pressure circulation lubrication with two Eaton pumps
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, DDS multi-disc clutch, Brembo hydraulics
Dimensions & weight
- Wheelbase
- 1485 mm
- Seat height
- 960 mm
- Dry weight
- 100.2 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
- 300 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
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 | 2027 |
|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 450 cc |
| Dry weight | 104 kg | 108 kg | 100 kg | 101 kg | 103 kg |
| Seat height | 925 mm | 992 mm | 960 mm | 950 mm | 958 mm |
| Fuel capacity | 8 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 450 SX-F?
The 2017 KTM 450 SX-F has a Capacity of 449.3 ccm (27.42 cubic inches).
What engine power does the KTM 450 SX-F have?
The 2017 KTM 450 SX-F has a Power of 56.0 HP (41.2 kW).
How many gears does the KTM 450 SX-F have?
The 2017 KTM 450 SX-F has a Gearbox of 4-speed.
How much does the KTM 450 SX-F weigh?
The 2017 KTM 450 SX-F has a Dry weight of 100.2 kg (220.9 pounds).
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