cylinder kit Polini cast iron sport 115cc 57.5mm for Ape 50, Vespa PK 50, Special 50, XL 50

115cc cast iron racing cylinder kit for from Polini for 50cc Vespa PK, Special and XL Classic scooters. The cylinder has a 57.5mm bore and achieves an output of 9.8bhp at 8,200RPM according to manufacturer´s claims.