Built around KTM's enduro - offroad motorcycle platform, the 2011 KTM 450 SX-F utilizes a 449.3 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 97.0 x 60.8 mm (3.8 x 2.4 inches) with a 12.5:1 compression ratio.
On the scales, the 450 SX-F measures 106.9 kg (236 lbs) dry. Rider ergonomics and chassis geometry center around a 992 mm (39.1 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,495 mm (58.9 in) wheelbase engineered for balanced agility and highway composure. The 7.5-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's KTM archive, this model family spans 19 indexed model years from 2007 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
992 mm (39.1 in)
Engine
Displacement449.3 ccm (27.42 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression12.5:1
Bore x Stroke97.0 x 60.8 mm (3.8 x 2.4 inches)
Valves/Cylinder4
Fuel SystemCarburettor. Keihin FCR MX 41
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
LubricationPressure lubrication with 3 oil pumps
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet mDouble disk clutch, operated hydraulically
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
