Pinion Z 25 (Crown Z 72)

It is assembled in a few minutes, without any modification on the original bell. It is sufficient to remove the clutch access door and replace the gear without disassembling the clutch bell. Increase top speed by approximately 10km / h. Applications: Vespa ET3 125, Vespa PK 125, Vespa PK 50, Vespa PK HP 50, Vespa PK XL 125, Vespa PK XL 50, Vespa Special 50 4M, Vespa Special 50 3M, Ape 50, Ape 50 Transformation 125.