| Attribute | KTM 125 SX 2018 × | GAS GAS EC 125 2002 × |
|---|---|---|
| General | ||
| Production from (year) | 2018 | 2002 |
| Make | KTM | GAS GAS |
| Model | KTM 125 SX | GAS GAS EC 125 |
| Category | Cross / motocross | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Mikuni TMX | Carburettor |
| Engine details | Reed intake. | - |
| Displacement (cm³) | 124.8 | 125 |
| Power (kw) | - | 26.9 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | - | 25.2 |
| Bore (mm) | 54 | 54 |
| Stroke (mm) | 54.5 | 54.5 |
| Gearbox | 6-speed | 6-speed |
| Driveline | 13:50. Primary drive: 23:73. | - |
| Ignition | Kokusan EMS | - |
| Clutch | Multi-plate clutch, Brembo hydraulics | - |
| Chassis | ||
| Front suspension | WP-USD, AER 48, Ø 48 mm | - |
| Rear suspension | WP shock absorber with linkage | - |
| Front brakes | Single disc. Brake calipers on floating bearings | Single disc |
| Rear brakes | Single disc. Brake calipers on floating bearings | Single disc |
| Diameter (mm) | 220 | 220 |
| Frame type | Chrome-molybdenum steel central-tube frame | - |
| Wheels | CNC machined hubs. Excel rims. Wire spoked. | - |
| Front wheel travel (mm) | 300 | 295 |
| Rear wheel travel (mm) | 300 | 320 |
| Rake (fork angle) (degree) | 26.5 | - |
| Other | ||
| Starter | Kick | - |
| Color options |
| - |
| Dimensions | ||
| Wheelbase (mm) | 1,485 | 1,475 |
| Dry weight (kg) | 87 | - |
| Seat height (mm) | 960 | 940 |
| Ground clearance (mm) | 375 | 340 |
| Performance | ||
| Fuel capacity (l) | 7 | 9.5 |