The Polini Ø61mm cylinder kit has been designed to give a power injection to the Piaggio Medley
- The displacement has been increased up to 171,8cc, with a 40% increment of performance in acceleration.
- The cylinder is in aluminum with barrel made of cast iron and casting included, piston mad of aluminum with one chromed ring, 1 steel ring and scarper rings.
- For a proper carburation it is necessary to assemble the kit with the ECU. The Polini ECU controls the quantity of fuel that enters the cylinder so modifying the injection timings.