Comparison of Aermacchi HD 150 Zeffiro 1956 and Aermacchi HD 150 Zeffiro 1955 [S]ave
| Attribute |  Aermacchi HD 150 Zeffiro 1956 × | Aermacchi HD 150 Zeffiro 1955 × |
|---|---|---|
| General | ||
| Production from (year) | 1956 | 1955 |
| Make | Aermacchi | Aermacchi |
| Model | Aermacchi HD 150 Zeffiro | Aermacchi HD 150 Zeffiro |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. DellÓrto | Carburettor. DellÓrto |
| Displacement (cm³) | 148 | 148 |
| Power (kw) | 4.4 | 4.4 |
| Fuel consumption (l/100km) | - | 2.8 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 57 | 57 |
| Stroke (mm) | 58 | 58 |
| Gearbox | 3-speed | 3-speed |
| Greenhouse gases | - | 65.0 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Clutch | Wet multiplate | Wet multiplate |
| Compression | 6.5:1 | 6.5:1 |
| Chassis | ||
| Front suspension | Telescopic | Telescopic |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | 3-17 | 3-17 |
| Rear tyre | 3-17 | 3-17 |
| Seat | Two single seats | Two single seats |
| Other | ||
| Starter | Kick | Kick |
| Dimensions | ||
| Dry weight (kg) | 92 | 92 |
| Power/weight ratio | 0.0478 | 0.0478 |
| Performance | ||
| Top speed (km/h) | 90 | 90 |
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