Correspondence table between bike tire size and rim width:





Rim width (mm)




Tire width

 (mm)

13C 15C 17C 19C 21C 23C 25C 27C 29C 30C 35C 40C 45C 50C 65C 70C 75C 80C 85C 90C 100C
18
20
23
25
28
32
35
37
40
42
44
47
50
52
54
57
60
62
65
70
75
100
110
120