| Attribute | Hercules K 125 X 1971 × | Hercules K 125 X 1970 × |
|---|---|---|
| General | ||
| Production from (year) | 1971 | 1970 |
| Make | Hercules | Hercules |
| Model | Hercules K 125 X | Hercules K 125 X |
| Category | Classic | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Displacement (cm³) | 124 | 124 |
| Power (kw) | 10.9 | 10.9 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 54 | 54 |
| Stroke (mm) | 54 | 54 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Port control | Port control |
| Compression | 10.8:1 | 10.8:1 |
| Chassis | ||
| Front brakes | Expanding brake | Expanding brake |
| Rear brakes | Expanding brake | Expanding brake |
| Front tyre | 2.75-17 | 2.75-17 |
| Rear tyre | 3.00-17 | 3.00-17 |
| Dimensions | ||
| Kerb weight (kg) | 111 | 111 |
| Performance | ||
| Top speed (km/h) | 117 | 117 |
| Fuel capacity (l) | 13 | 13 |