| MODEL | LAMBRETTA LDA150 SERIES 3 1957 |
| Year | 1957 |
| Engine Type | — |
| Displacement / Capacity | — |
| Bore X Stroke | 57 x 58 mm / 2.2 x 2.3 in |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | 4.4 kW / 6.0 hp @ 4600 rpm |
| Max Torque | — |
| Ignition | Contact breaker and points |
| Induction | — |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | 6% (petrol-oil mix) |
| Gear Box | 3-speed |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 109.8 kg / 242 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 4-8 |
| Rear Tyre | 4-8 |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 78.9 km/h / 49 mph |
The LDA150 Series 3 is the electric-start version of the late LD scooters, which makes it noticeably heavier at about 110 kg dry. It uses the same 148 cc air-cooled two-stroke and three-speed hand-change gearbox.
