Whoever says VNB2 will also say VNB3T. Piaggio did this in 1962 and presented an unchanged successor under the hood. The changes were mainly cosmetic, incorporating many features of the 150cc models. The handlebar head was no longer divisible and was made of cast aluminum with a holder for the small, square speedometer, as known from the predecessor model. However, the diameter of the headlight has increased to 115 mm. The brake pedal is the same as on the 150, made of highly polished aluminum with a black brake pedal rubber.
The Vespa lettering and saddle come in a dark blue. The rear light is no longer painted, but chrome-plated. Instead of the foot strips on the center tunnel, the mat with side trim strips is now fitted. The front mudguard is shaped slightly differently to the previous model and now has beading on the sides. The leg shield is flanged with an aluminum slotted tube.
The VNB4T, also introduced in 1962, did not change that much. The tried and tested engine was retained and the frame only changed in the area of the license plate mounting, where the frame was now square. The scooter is delivered in a light gray (MaxMeyer 1.298.8707). The wheelbase is 2 cm shorter. The rear brake pads no longer overlap on one bolt, but now have two bolts. The side hoods are now upgraded with trim strips.
In 1963, an engine with a 4-speed gearbox was installed for the first time in the VNB5T. The overall gear ratio remained the same, but the transmission was more closely stepped.
Only minor changes were made to the VNB6T from 1964. For example, the nuts of the stud bolts for the wheel fastening were reinforced (from 8 to 10 mm). In addition, the wheel nuts no longer had a weld. The rear light is that of the Super. In technical terms, the compression of the 4-speed engine is increased from 7.2:1 to 7.7:1. This increases the power output from 4.6 to 5.12 hp.
VNB5 frame numbers by year of construction:
1963: VNB5T 1001-7070
1964: VNB5T 7071-43240