2012KTM 450 SX-F

★ 3.0

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The 2012 KTM 450 SX-F is a competitive four-stroke enduro bike engineered for serious off-road racers and experienced riders seeking maximum performance. Powered by a liquid-cooled 450cc single-cylinder engine with electronic fuel injection and DOHC technology, it delivers aggressive power delivery and precise handling across challenging terrain. Known for its lightweight construction and responsive chassis, this model excels in motocross and enduro competition.

Capacity: 449.3 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 107.8 kg
Seat height: 992 mm
Power: 56.0 HP (41.2 kW)

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What’s new for the 2012 KTM 450 SX-F

vs the 2011

Spec	2011	2012
Front suspension	WP-USD fork	WPSuspension Up Side Down 4860 MXMA CC
Rear suspension	WP PDS shock absorber	WPSuspension 5018 BAVP DCC

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

Off-road & trail98%

Cornering90%

City riding10%

Daily riding15%

Touring10%

Two-up5%

Track92%

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?

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Your height

Inseam (optional)

Units

At 992mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2012 KTM 450 SX-F, with a moderate knee angle of around 90 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 →

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Full specifications

Engine

Capacity: 449.3 ccm
Power: 56.0 HP (41.2 kW)
Engine type: Single, four-stroke
Power/weight ratio: 0.5195 HP/kg (dry)
Bore x stroke: 97.0 x 60.8 mm
Compression: 12.5:1
Cooling system: Liquid
Fuel system: Carburettor
Starting: Electric
Ignition: Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment
Valves per cylinder: 4
Lubrication system: Forced oil lubrication with 3 Eaton pumps

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet mDouble disk clutch / hydraulically operated

Dimensions & weight

Wheelbase: 1495 mm
Seat height: 992 mm
Dry weight: 107.8 kg
Fuel capacity: 7.50 litres
Ground clearance: 371 mm

Chassis & suspension

Frame: Central tube frame made of chrome molybdenum steel tubing
Front suspension: WPSuspension Up Side Down 4860 MXMA CC
Rear suspension: WPSuspension 5018 BAVP DCC
Front wheel travel: 300 mm
Rear wheel travel: 330 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/black/white

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