Flywheel side crank seal fits VL1-3, VB1, VNA, VNB, VBA, VBB, GL, Sprint, Super, GT, TS, GS150. This is also the clutch side seal on GS150, VL1-3, VB1, and VNA, so two are required for those Vespas.
Looking for more seals for your bike? This seal is also available in the following seal kits:
VL1-3, VB1
VNB-VBB-VBA
GS150
Early Sprint
Early Super
Late Sprint