POLINI Ø12 X 40mm piston pin for Ø50mm 80cc kits on minarelli am6 and DERBI

Piston pin diameter 12mm by length 40mm for all 80cc Ø50mm kits from DERBI and minarelli am6 cast iron or aluminum (evolution). It can also be mounted on other kits such as the 100cc Ø55mm kit from YAMAHA DT, TZR, ... 80 LC