| Attribute | Lambretta GP 125 × | Hercules K 103 S 1964 × |
|---|---|---|
| General | ||
| Production from (year) | 1969 | 1964 |
| Make | Lambretta | Hercules |
| Model | Lambretta GP 125 | Hercules K 103 S |
| Category | Scooter | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. DellÓrto | Carburettor. Bing 22mm |
| Displacement (cm³) | 123 | 97 |
| Power (kw) | 5.3 | 6 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 52 | 48 |
| Stroke (mm) | 58 | 54 |
| Ignition | Magneto | - |
| Compression | 7.8:1 | - |
| Chassis | ||
| Rear suspension | - | Swingarm |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | - | Single cradle |
| Front tyre | 3.50-10 | 2.75-21 |
| Rear tyre | 3.50-10 | 2.75-21 |
| Seat | Dual | Dual |
| Wheels | - | Spoked |
| Other | ||
| Starter | Kick | Kick |
| Dimensions | ||
| Dry weight (kg) | 105 | 99 |
| Power/weight ratio | 0.0504 | 0.0606 |
| Performance | ||
| Top speed (km/h) | 86 | 95 |