ITALKIT 1 Ring Piston Kit 125 CC 53,93 Rotax 122 and 123 90-12

1 ring piston kit for the ITALKIT 125 cc cylinderkit. 53,95 mm is the standard bore for the Italkit 125 cc. Also fits replated OEM cylinders and other brands (Mitaka, Athena) with smaller diameter than OEM standard bore. OEM standard bore is 53,97 mm !