Vespa 125 Corsa was manufactured,The frame was of the aluminium alloy used in aircraft construction

 

In February 1950, while the three "Carenate" Super Sports destined for endurance records were being finished, the Experimental Department completed two more machines to be reserved for speed competitions. They were the first two of a batch of ten vehicles intended for racing for the 1950 season, a year that will be remembered as Piaggio's greatest commitment in sporting competitions. 

Vespa was developed for trial racing, in which it enjoyed considerable success. Its styling was very similar to that of the standard models, except for a larger fuel tank, wrapround leg shield and a larger right side sack to house the carburettor on the cylinder. 

In 1949 the Vespa 125 Corsa was manufactured. The frame was of the aluminium alloy used in aircraft construction and assembled using alloy rivets, an avant-garde technological feature of the time. The larger fuel tank stretched towards the steering column, and was intended to offer increased range and optimize riding at high speed. Vespa 125 Corsa took part in several city races, notching up many prestigious victories. In 1950 Giuseppe Cau and Dino Mazzoncini gained first and second place at the Bologna Grand Prix. In the same year, Giuseppe Cau won on the Perugia circuit with the vespa 98 Corsa no. 38.