KTM 125 SX 2013: IN A CLASS OF ITS OWN
ENGINE
| Design | 1-cylinder 2-stroke engine, water-cooled, with reed intake and exhaust control |
|---|---|
| Displacement | 124.8 cm³ (7.616 cu in) |
| Bore | 54 mm (2.13 in) |
| Stroke | 54.5 mm (2.146 in) |
| Starting aid | |
| Gearbox | 6-gear, claw shifted |
| Primary transmission | 23:73 |
| Secondary ratio | 13:50 |
| Clutch | Multidisc clutch in oil bath/hydraulically activated |
| Ignition | Contactless controlled fully electronic ignition with digital ignition adjustment, type Kokusan |
CHASSIS
| Frame | Central tube frame made of chrome molybdenum steel tubing |
|---|---|
| Fork | WP Suspension Up Side Down 4860 MXMA CC |
| Shock absorber | WP Suspension 5018 BAVP DCC |
| Suspension travel Front | 300 mm (11.81 in) |
| Suspension travel Rear | 330 mm (12.99 in) |
| Brake system | Disc brakes, brake calipers on floating bearings |
| Brake discs - diameter Front | 260 mm (10.24 in) |
| Brake discs - diameter Rear | 220 mm (8.66 in) |
| Chain | 5/8 x 1/4" |
| Steering head angle | 63.5° |
| Wheelbase | 1,480±10 mm (58.27±0.39 in) |
| Ground clearance unloaded | 395 mm (15.55 in) |
| Seat height unloaded | 992 mm (39.06 in) |
| Total fuel tank capacity, approx. | 7.5 l (1.98 US gal) Super unleaded gasoline, mixed with 2-stroke engine oil (1:40) |
| Weight without fuel, approx. | 90.8 kg (200.2 lb.) |
