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.
General information | |
| Category | Enduro / offroad |
| Year | 2009 |
| Model | KTM 125 SX |
| | |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc clutch, operated hydraulically |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Mixture oil lubrication 1:40 |
| Starter | Kick |
| Ignition | Kokusan |
| Fuel system | Carburettor. Keihin PWK 39 |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 124.80 ccm (7.62 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,471 mm (57.9 inches) |
| Ground clearance | 390 mm (15.4 inches) |
| Seat height | 985 mm (38.8 inches) If adjustable, lowest setting. |
| Dry weight | 90.8 kg (200.2 pounds) |
KTM 125 SX dimensions and frame | |
| Exhaust system | Aluminium |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 100/90-19 |
| Front tyre dimensions | 80/100-21 |
| Rear suspension travel | 335 mm (13.2 inches) |
| Rear suspension | WP PDS shock absorber |
| Front suspension travel | 300 mm (11.8 inches) |
| Front suspension | WP USD, 43 mm |
| Rake (fork angle) | 27.0° |
| Frame type | Central double-cradle-type 25CrMo4 |
Speed and acceleration | |
| Color options | Orange/black |
| Fuel capacity | 8.00 litres (2.11 gallons) |







































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