125cc Vespa VNA VNB, Vespa VBA VBB
150cc Vespa VNA VNB, Vespa VBA VBB
The VBA/VBB were the successor to the handlebar "widebody" Vespas. The VBA/VBB was the 150cc models and VNA/VNB was the prefix for the 125cc models. The "A" were the first ones produced, and were then followed by the "B" models when the rear of the frame was flattened out. In following the handlebar Vespas, these scooters had a completely new body and motor design which was the basis for almost all following largeframe Vespas.