The Polini cylinder kit with item number P1400238 has been specially developed to increase the performance of Piaggio iGet engines with 125 and 150 cc displacement, which are used in models such as the Vespa GTS and the Piaggio Medley. This tuning kit increases the displacement to 171.8 cc and leads to a significant increase in performance, especially in acceleration, which is improved by up to 40 %. The cylinder kit consists of an aluminum cylinder with a robust cast iron liner, which enables improved heat dissipation and a longer service life. The piston is fitted with chrome rings and oil wipers for optimum lubrication and a long service life. For 125 and 150 cc Euro 4 vehicles : P1710008 + P1710204 For 125 cc Euro 5 vehicles : P1710023 For 150 cc Euro 5 vehicles : P1710024 Please order 1x each.