| Attribute | Hercules K 125 Military 1986 × | CZ 125 Trail 1978 × |
|---|---|---|
| General | ||
| Production from (year) | 1986 | 1978 |
| Make | Hercules | CZ |
| Model | Hercules K 125 Military | CZ 125 Trail |
| Category | Custom / cruiser | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Displacement (cm³) | 124 | 123 |
| Power (kw) | 9.1 | 8 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 54 | 52 |
| Stroke (mm) | 54 | 58 |
| Gearbox | 5-speed | 4-speed |
| Fuel control | Port control | Port control |
| Compression | 9.0:1 | 8.6:1 |
| Chassis | ||
| Front brakes | Expanding brake | Expanding brake |
| Rear brakes | Expanding brake | Expanding brake |
| Front tyre | 3.25-18 | 2.75-21 |
| Rear tyre | 3.50-18 | 3.50-18 |
| Dimensions | ||
| Kerb weight (kg) | 135 | 127 |
| Performance | ||
| Top speed (km/h) | 94 | 90 |
| Fuel capacity (l) | 15 | 11 |