High Performance Piston Kit with Gaskets for 2-StrokeComplete piston kit includes pistons, rings, wrist pins, circlips and top-end gasket kit for one complete engineWiseco pistons can be fitted only with Wiseco ringsWiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC).Cylinder sleeves must be purchased separately.Must use stock thrust washers. Cylinder resleeving or replating required for oversizes. Crankcase clearance required for 50 mm and larger bore diameter.