piston kit Polini 41mm 12mm piston pins for Piaggio, Vespa Bravo, boss, Ciao, Grillo, SI 204.0050

Polini kit with replacement piston for the 57cc cast iron sport cylinder kits from Polini for Piaggio/ Vespa Bravo, Boss, Ciao, Grillo, SI, CBA as well as Eco mopeds with 12 mm gudgeon pin. The kit includes the gudgeon pin, 2 piston clips and 2 piston rings.