
Products reserved exclusively for competitions in designated areas in accordance with the provisions of the relevant sports authorities. We accept no responsibility for inappropriate use.
POLINI piston ring Ø47.6 mm x 0.8 mm, chrome finish — a spare part designed for small displacement engines and urban modifications. This ring ensures sealing between the piston and cylinder wall to limit compression losses and control gas leaks. Designed for precise bore, it fits on pistons calibrated to Ø47.6 mm while respecting the thickness of 0.8 mm.
Common compatibilities: PIAGGIO TYPHOON 50 E4 (2020), APRILIA SCARABEO 50 2T CLASSIC E4 (2020), YAMAHA AEROX R (SA421) (2018). Before installation, check the piston/cylinder clearance and follow the manufacturer's recommendations for breaking in and tightening. For safe installation and optimal adjustment, we recommend the intervention of a professional or an experienced mechanic.