KTM 250 SX - 2010 Specifications and Reviews

The 2010 KTM 250 SX is a lightweight two-stroke enduro machine designed for intermediate to advanced off-road riders seeking agile trail performance. Known for its potent 249cc single-cylinder engine and responsive handling, it excels in technical terrain and competitive racing environments. The liquid-cooled powerplant, coupled with a five-speed gearbox and hydraulic clutch, delivers the precision control and reliability serious riders demand.

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General information

CategoryEnduro / offroad
Year2010
ModelKTM 250 SX

Engine and Transmission Specifications

Exhaust systemAluminium
ClutchWet mDouble disk clutch, operated hydraulically
Transmission type,final driveChain
Gearbox5-speed
Cooling systemLiquid
Lubrication systemMixture oil lubrication 1:60
IgnitionKokusan
Fuel systemCarburettor. Keihin PWK 36S AG
Bore x stroke66.4 x 72.0 mm (2.6 x 2.8 inches)
Engine typeSingle cylinder, two-stroke
Capacity:249.00 ccm (15.19 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesSingle disc
Rear tyre dimensions110/90-19
Front tyre dimensions80/100-21
Rear suspension travel335 mm (13.2 inches)
Rear suspensionWP PDS shock absorber
Front suspension travel300 mm (11.8 inches)
Front suspensionWP USD 48 mm fork
Rake (fork angle)26.5°
Frame typeCentral double-cradle-type 25CrMo4

Physical measures and capacities

Fuel capacity8.00 litres (2.11 gallons)
Wheelbase1,475 mm (58.1 inches)
Ground clearance385 mm (15.2 inches)
Seat height985 mm (38.8 inches) If adjustable, lowest setting.
Dry weight95.4 kg (210.3 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsOrange
StarterKick

Rider Fit Visualizer

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Feet:

At 985mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with cannot reach comfortably on the 2010 KTM 250 SX, with a moderate knee angle of around 90 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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