With the primary gear wheel with 16 teeth, the original Vespa PK 50 S / XL / XL2 and V50 primary gear can be extended.
To do this, simply replace the original gear wheel with 15 teeth with the new gear wheel with 16 teeth. This eliminates the need to split the engine. On the one hand, this increases the top speed, and on the other hand, the engine is protected by the extended gear.
Suitable for gear ratios with 14T (4.93) and 15T (4.60).
Find out in the RPM Calculator how the 16T sprocket will affect the top speed.
