72mm Piston set for GY6 250cc WATER COOLED MOTORS MOPED CF250 This piston set is designed for use with GY6 250cc water-cooled engines commonly found in mopeds and similar vehicles.The set includes a piston, connecting rod, wrist pin, and piston rings.It features a 72mm bore diameter and is compatible with models utilizing the CF250 engine platform.The piston is engineered to maintain proper compression and performance in water-cooled applications.Installation requires standard mechanical tools and knowledge of small engine assembly. Important: This is a non-OEM part.Any brand or model cited is used to denote device compatibility.