The VB was the successor model to the VL ("Struzzo") in the 150cc range and, apart from the Vespa 150 GS built until 1961, was Piaggio's last wideframe model, which was then replaced in its displacement class in 1958 by the VBA with largeframe, which was equipped with a rotary valve for the first time.
The engine of the VB is identical to that of the Struzzo, only the carburettor was now a Dell'Orto MA19D. However, fundamental changes were made to the frame compared to its predecessor: The wiring harness and cables were now routed in the frame tunnel up to the handlebars, which were now designed as closed die-cast aluminum handlebars as on the GS/3 - the age of tubular handlebars was thus over. The shape of the speedometer with white dial and the red indicator light on the steering head of the Struzzo were retained. (Source: GSF)
Frame numbers by year of manufacture:
1957: VB1T 1001-55375 (number of units: 54,375)
1958: VB1T 55376-99700 (number of units: 44,325)
Total number of units: 98,700