Cylinder Kit 50cc 10mm piston pin for Piaggio Boss, Bravo, Ciao, Grillo, SiReplacement 50cc cast iron cylinder kit matching the original cylinder at a very good price than that of the OEM cylinder making it ideal for worn or seized top endsSupplied as per image with barrel, piston, rings, pin, clips and gasketsCylinder head is not included, original head can be usedThis cylinder kit can be used to replace OEM parts 249711/827637