piston kit Polini 70cc 10mm piston pin (B) for Minarelli vertical 204.0770/B

Polini B piston with 10mm gudgeon pin for the 70cc aluminium Racing Evolution cylinder kit from Polini for scooters with air-cooled Minarelli upright engines. The kit includes the gudgeon pin, 2 piston clips and 2 piston rings.