Positioned in KTM's enduro - offroad motorcycle lineup, the 2010 KTM 450 SX-F utilizes a 449.3 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 53 HP (38.7 kW) at 8,300 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 118 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the 450 SX-F measures 104.6 kg (231 lbs) dry, translating to a power-to-weight ratio of 0.51 HP/kg (1.97 kg per horsepower). Rider ergonomics and chassis geometry center around a 985 mm (38.8 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,475 mm (58.1 in) wheelbase engineered for balanced agility and highway composure. The 8-liter (2.1 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.
Specific Output
118 HP/L
Power-to-Weight
0.51 HP/kg (1.97 kg/HP)
Standover Height
985 mm (38.8 in)
Engine
Displacement449.3 ccm (27.42 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power53.0 HP (38.7 kW)) @ 8300 RPM
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)
IgnitionKokusan
LubricationPressure lubrication with 3 oil pumps
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet mDouble disk clutch, operated hydraulically
Performance
ExhaustAluminium
Chassis
Frame TypeCentral double-cradle-type 25CrMo4
Rake26.5°
Front SuspensionWP-USD fork
Front Travel300 mm (11.8 inches)
Rear SuspensionWP PDS shock absorber
Rear Travel335 mm (13.2 inches)
Wheelbase1475 mm (58.1 inches)
Ground Clearance380 mm (15.0 inches)
Wheels & Brakes
Front Tyre80/100-21
Rear Tyre110/90-19
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight104.6 kg (230.6 pounds)
Power/Weight0.5067 HP/kg
Seat Height985 mm (38.8 inches) If adjustable, lowest setting.
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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
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.
