Piston Ring Set for GY6 150cc Moped Scooters ATVs Go Karts Dune Buggy Quad 4 Wheeler New Piston Ring Set Compatible with GY6 150cc Moped, Scooters, ATVs, Go Karts Outside Diameter: 2.36"; High temperature resistant; Piston Ring Set 59mm Uncompressed; Piston Ring Set 57mm Compressed