cylinder kit Polini cast iron sport 70cc 12mm for CPI, Keeway Euro 2, obliquely

70cc cast iron sports Polini cylinder kit for Minarelli-based, horizontal, air-cooled engines (Euro2) such as Keeway, CPI, QJ with 12mm gudgeon pins. The cylinder has a 46mm bore and achieves an output of 7.5bhp at 10,500RPM according to manufacturer´s claims.