POLINI Vespa Gearbox Kit 23/64 P125-150, PX125-150, Sprint, Super, GTR (Up To 1997) HAND COVER - PRIMARY DRIVE (67/68) STANDARD

-  PRIMARY DRIVE (67/68) STANDARD TOOTH GEAR 21

These can be identified by the inscription "GRIMECA" on the brake fluid reservoir

Gilera VX 125 4T

This is a Genuine Piaggio part

but still a good aftermarket part

POLINI Vespa Gearbox Kit 23/64 P125-150, PX125-150, Sprint, Super, GTR (Up To 1997) HAND COVER - PRIMARY DRIVE (67/68) STANDARDPOLINI Vespa Gearbox Kit 23 64 P125 150, PX125 150, Sprint, Super, GTR (Up To 1997) This POLINI Vespa Gearbox Kit allows you to adjust the final drive ratio of your VESPA motor, up to 23 64. This increases performance and efficiency, leading to higher top speeds and lower engine revs at cruising speeds, while also gaining more miles per gallon. Perfect for tuning cylinder kits between 166 and 177cc, as well as performance enhanced 200cc VESPA motor