Comparison of Aermacchi HD 125 Zeffiro 1955 and Hercules 313 Starr 1957 [S]ave
| Attribute |  Hercules 313 Starr 1957 × |  Aermacchi HD 125 Zeffiro 1955 × |
|---|---|---|
| General | ||
| Production from (year) | 1957 | 1955 |
| Make | Hercules | Aermacchi |
| Model | Hercules 313 Starr | Aermacchi HD 125 Zeffiro |
| Category | Sport | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor. DellÓrto |
| Displacement (cm³) | 123 | 123 |
| Power (kw) | 4.7 | 3.6 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 57 | 52 |
| Stroke (mm) | 58 | 58 |
| Gearbox | - | 3-speed |
| Clutch | - | Wet multiplate |
| Compression | - | 5.7:1 |
| Chassis | ||
| Front suspension | Telescopic | Telescopic |
| Rear suspension | Rigid | - |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | 2.75-19 | 2.25-17 |
| Rear tyre | 2.75-19 | 2.25-17 |
| Seat | Spring-mounted seat | Two single seats |
| Other | ||
| Starter | - | Kick |
| Dimensions | ||
| Dry weight (kg) | 90 | 92 |
| Power/weight ratio | 0.0522 | 0.0391 |
| Performance | ||
| Top speed (km/h) | 85 | 78 |
| Fuel capacity (l) | - | 6.5 |
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