Features: 1.100% Brand New Aftermarket Replacement Motorcycle Cylinder Kit with Premium Quality. 2.Comes with a complete kit including cylinder, piston, piston rings, piston pin, spark plug, clips and gaskets. 3.Piston bore diameter 52.4mm, a perfect replacement for your old one. 4.Helps to improve the thermal efficiency, support the piston and reduce friction and leakage. 5.Made from high quality metal, the cylinder and piston kit is durable and reliable. Specification: Features:_x000D_ _x000D_ 100% Brand New Aftermarket Replacement Motorcycle Cylinder Kit with Premium Quality. _x000D_ Comes with a complete kit including cylinder, piston, piston rings, piston pin, spark plug, clips and gaskets. _x000D_ Piston bore diameter 52.4mm, a perfect replacement for your old one. _x000D_ Helps to improve the thermal efficiency, support the piston and reduce friction and leakage. _x000D_ Made from high quality metal, the cylinder and piston kit is durable and reliable. _x000D_ Easy to install, fit for GY6/125CC/152QMI Engine. _x000D_ _x000D_ Specifications:_x000D_ Condition: 100% Brand New_x000D_ Main Material: Metal_x000D_ Color: Silver_x000D_ Size: 119 * 91 * 52.4mm/4.7 * 3.6 * 2.3in_x000D_ Package Weight: Approx.1295g_x000D_ Fitment: For GY6/125CC/152QMI Engine_x000D_ _x000D_ Package List:_x000D_ 1 * 52.4mm big bore _x000D_ 1 * Set of 52.4mm piston set (piston, piston pin , piston clips)_x000D_ 1 * Set of 52.4mm piston ring _x000D_ 1 * Set of Oil seal for valves _x000D_ 1 * Set of 175cc head gasket _x000D_ _x000D_ Notes:_x000D_ 1. This is a high quality aftermarket product but not genuine._x000D_ 2.Please allow 1-2mm difference due to manual measurement. Thank you. PackageList: