Ölçü/Size Ebat/Dimensions(mm) mm Dış çap/ İç çapxt 25 25/22.6x1.2 38 28/35.6x1.2 51 51/48.6x1.2 63.5 63.5/60.3x1.6 76.1 76.1/72.9x1.6 101.6 101.6/97.6x2.0