| MODEL | LAMBRETTA LI 125 SERIES 1 1958 |
| Year | 1958 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 123 cc / 7.51 cu in |
| Bore X Stroke | 52 x 58 mm / 2.0 x 2.3 in |
| Compression Ratio | 7.0:1 |
| Cooling System | Air |
| Max Power | 3.8 kW / 5.2 hp @ 5200 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor (Dellorto) |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4-speed |
| Clutch | Constant mesh |
| 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 | 103.9 kg / 229 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.50-10 |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 69.2 km/h / 43 mph |
The LI 125 Series 1 is the first series of the rounded-body Li scooter, with a 123 cc air-cooled two-stroke engine and a four-speed gearbox. It was a light, economical commuter.
