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KTM 125 SX - 2009 Specifications and Reviews

The 2009 KTM 125 SX is a lightweight enduro bike designed for younger riders and beginners seeking an accessible entry into off-road racing. Powered by a nimble 125cc liquid-cooled two-stroke engine with a 6-speed gearbox, it delivers sharp throttle response and excellent maneuverability. Known for its low seat height, minimal weight, and aggressive styling, the 125 SX excels in technical terrain and competitive amateur racing.

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General information

CategoryEnduro / offroad
Year2009
ModelKTM 125 SX
 
 

Engine and Transmission Specifications

ClutchWet multi-disc clutch, operated hydraulically
Gearbox6-speed
Cooling systemLiquid
Lubrication systemMixture oil lubrication 1:40
StarterKick
IgnitionKokusan
Fuel systemCarburettor. Keihin PWK 39
Bore x stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Stroke2
Engine typeSingle cylinder
Capacity:124.80 ccm (7.62 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,471 mm (57.9 inches)
Ground clearance390 mm (15.4 inches)
Seat height985 mm (38.8 inches) If adjustable, lowest setting.
Dry weight90.8 kg (200.2 pounds)

KTM 125 SX dimensions and frame

Exhaust systemAluminium
Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tyre dimensions100/90-19
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, 43 mm
Rake (fork angle)27.0°
Frame typeCentral double-cradle-type 25CrMo4

Speed and acceleration

Color optionsOrange/black
Fuel capacity8.00 litres (2.11 gallons)

Rider Reviews

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