| MODEL | VESPA 125 1977 - 1997 |
| Year | 1977 - 1997 |
| Engine Type | Two stroke, single cylinder |
| Displacement / Capacity | 123.4 cc / 7.5 cu in |
| Bore X Stroke | 52.5 x 57.0 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled with centrifugal fan |
| Max Power | 5.9 kW / 8 hp @ 5800 rpm |
| Max Torque | 1.07 kgf-m / 7.7 ft-lb @ 4500 rpm |
| Ignition | Flywheel alternator with built-in HT coil |
| Induction | — |
| Start System | Kick start |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 speed, grip shift, constant mesh (1st 16.4 / 2nd 11.0 / 3rd 7.60 / 4th 5.8:1) |
| Clutch | Multi plate |
| Final Drive | Direct drive |
| CHASSIS SPECS | |
| Frame | Pressed sheet steel with streamlined monocoque structure |
| Front Suspension | Helical spring with double-acting hydraulic damper |
| Rear Suspension | Helical spring with double-acting hydraulic damper |
| Front Brakes | 125 mm drum |
| Rear Brakes | 125 mm drum |
| DIMENSION SPECS | |
| Overall Length | 1655 mm / 65.2 in |
| Overall Width | 790 mm / 31.1 in |
| Overall Height | 1170 mm / 46.1 in |
| Seat Height | — |
| Wheelbase | 1250 mm / 49.2 in |
| Ground Clearance | — |
| Dry Weight | 112 kg / 247 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.5 x 10 in |
| Rear Tyre | 3.5 x 10 in |
| FUEL SYSTEM | |
| Fuel Capacity | 8 Litres / 2.1 US gal |
| Fuel Consumption | 2.7 L/100 km |
| Top Speed | 100 km/h / 62 mph |
The large-frame 125 of the Nuova Linea era, which debuted as the P125X at the 1977 Milan show. It had a squarer, larger body, more storage, a better saddle and a new speedometer, and its front damper was linked to the brake shoe holder to reduce dive under braking. It stayed in production for about two decades with only minor changes and became one of Piaggio's best sellers.
