cylinder kit Polini 80cc Series 6000 48mm for Sachs 5-speed 148.6002

79.5ccm aluminium cylinder kit from 6000 series with 44mm stroke by Polini for Sachs 5-speed geared mopeds. The cylinder has a 48mm bore, a compression ratio of 13.8:1 and achieves an output increase of 13bhp at 9,800PRPM according to manufacturer´s claims.