72mm Motorcycle Engine Piston Rings for GS1100 LT ES GL GSX1100 KATANA 1980-1983 GSX 1100 E 1980-1983 12140-49221-000 This piston ring set is designed for use with 72mm engine cylinders. It fits specific motorcycle models produced between 1980 and 1983, including the GS1100 series, GSX1100, KATANA, and GSX 1100 E. The part number for this item is 12140-49221-000. These rings are intended to restore proper compression and oil control in the engine cylinder. Installation requires standard mechanical tools and knowledge of engine assembly. The set includes all necessary rings for a complete piston ring replacement. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.