Race gear set for VARIATED Vespa mopeds like the Bravo, Grande, Si, etc.
Changes the gear ratio in the transmission to 8.93:1 for a big boost in top speed.
Best for a kitted Vespa. Definitely not going to work well on a stock engine or even a mild setup.
May require reshimming of the transmission. They are also tight to turn after install but that is normal. Definitely not for beginners!
Malossi 67 7021