| Attribute | Aermacchi HD 150 Zeffiro 1956 × | Lambretta LDA150 series 3 1958 × |
|---|---|---|
| General | ||
| Production from (year) | 1956 | 1958 |
| Make | Aermacchi | Lambretta |
| Model | Aermacchi HD 150 Zeffiro | Lambretta LDA150 series 3 |
| 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 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 57 | 57 |
| Stroke (mm) | 58 | 58 |
| Gearbox | 3-speed | 3-speed |
| Ignition | - | Contact breaker and points |
| Clutch | Wet multiplate | 3 speed- hand changed |
| Lubrication system | - | 6% |
| Compression | 6.5:1 | - |
| Chassis | ||
| Front suspension | Telescopic | - |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | - | Tubular steel |
| Front tyre | 3-17 | 4-8 |
| Rear tyre | 3-17 | 4-8 |
| Seat | Two single seats | Dual seat |
| Other | ||
| Starter | Kick | Electric |
| Dimensions | ||
| Dry weight (kg) | 92 | 109 |
| Power/weight ratio | 0.0478 | 0.0401 |
| Performance | ||
| Top speed (km/h) | 90 | 78 |