POLINI re-stage primary gears for VESPA 50 and 125 2T 4-speed

Primary gear on POLINI shaft re-stages 10/14/17/20 against 10/14/18/22 original! This gearbox shaft is mounted on the VESPA 125 and 50 2T. Ideal on a scooter prepared with kit, pot, carburetor, valves ...

Mounts on : VESPA: VESPA 125 2T PK - VESPA 125 2T PRIMAVERA - VESPA 125 2T XL - VESPA 50 2T SPECIAL - VESPA 125 2T PRIMAVERA ET3 - VESPA 50 HP 2T, FL2 - VESPA 50 PK 2T - VESPA 50 2T XL