KTM 125 SX - 2020 Specifications and Reviews
The 2020 KTM 125 SX is a lightweight motocross bike engineered for young and amateur riders seeking an accessible entry into competitive racing. Known for its responsive WP suspension package and electric start convenience, this machine delivers nimble handling and reliable performance on amateur racing circuits and training grounds.
General information | |
| Category | Enduro / offroad |
| Year | 2020 |
| Model | KTM 125 SX |
Engine and Transmission Specifications | |
| Driveline | 5/8  x  1/4 (520) O Ring. Primary drive: 22:72. |
| Clutch | Wet multi-disc clutch, mechanically actuated |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Wet sump |
| Ignition | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection |
| Bore x Stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Power | 15.0 Horsepower">HP (10.9 Kilowatt">kW)) |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 124.8 ccm (7.62 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc |
| Diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tire | 150-17 |
| Front tire | 110-17 |
| Rear wheel travel | 150 mm (5.9 inches) |
| Rear Suspension | WP Monoshock |
| Front Suspension | WP upside-down Ø 48 mm |
| Frame type | Central double-cradle |
| | |
Physical measures and capacities | |
| Power/weight ratio | 0.1095 HP/kg |
| Dry weight | 137.0 kg (302.0 pounds) |
Other specs | |
| Starter | Electric |
| Color options | White, Orange |
Rider Reviews
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