EU Inner Diameter (mm)

47 15.0 mm

48 15.3 mm

49 15.6 mm

50 15.9 mm

51 16.2 mm

52 16.5 mm

53 16.8 mm

54 17.2 mm

55 17.5 mm

56 17.8 mm

57 18.1 mm

58 18.4 mm

59 18.8 mm

60 19.1 mm

61 19.4 mm

62 19.7 mm