Spring Retaining Inner Plate For Primary Gear -BGM PRO 63mm- Vespa V50, V90, SS50, SS90, PV125, ET3, PK50, PK80, PK50 S, PK80 S, PK125 S, PK50 XL, PK80 XL, PK125 XL, ETS, PK50 HP, PK50 SS