| MODEL | VESPA 125 UTILITARIA 1953 |
| Year | 1953 |
| Engine Type | Two stroke, single cylinder |
| Displacement / Capacity | 124.8 cc / 7.6 cu in |
| Bore X Stroke | 56.5 x 49.8 mm |
| Compression Ratio | 6.4:1 |
| Cooling System | Air cooled, forced |
| Max Power | 3.3 kW / 4.5 hp @ 5800 rpm |
| Max Torque | — |
| Ignition | Flywheel magneto |
| Induction | Dell'Orto TA 17B carburettor |
| Start System | Kick start |
| TRANSMISSION SPECS | |
| Lubrication | Premix 1:20 |
| Gear Box | 3 speed |
| Clutch | Wet, multiplate |
| Final Drive | Direct drive |
| CHASSIS SPECS | |
| Frame | Pressed sheet steel, streamlined monocoque structure |
| Front Suspension | Variable flexible coil spring |
| Rear Suspension | Double hydraulic shock absorbers |
| Front Brakes | 124 mm drum |
| Rear Brakes | 126 mm drum |
| DIMENSION SPECS | |
| Overall Length | 1680 mm / 66.1 in |
| Overall Width | 790 mm / 31.1 in |
| Overall Height | 1170 mm / 46.4 in |
| Seat Height | 775 mm / 30.5 in |
| Wheelbase | 1160 mm / 45.7 in |
| Ground Clearance | — |
| Dry Weight | 78 kg / 172 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.5 x 8 in |
| Rear Tyre | 3.5 x 8 in |
| FUEL SYSTEM | |
| Fuel Capacity | 6.25 Litres / 1.65 US gal |
| Fuel Consumption | 2 L/100 km / 118 US mpg |
| Top Speed | 65 km/h / 40 mph |
The 125 U, short for Utilitaria, was a cut-price 1953 version of the standard Vespa 125, with chrome deleted and lighter engine cover and bodywork to bring the price down (about 110,000 lira). It sold poorly, with around 7,000 made.
