| Which tyre fits safely on which rim? [all dimensions in millimetres] |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tyre width | ||||||||||||||
| Rim width (interior) |
18 | 20 | 23 | 25 | 28 | 32 | 35 | 37 | 40 | 44 | 47 | 50 | 54 | 57 |
| 13 | X | X | X | X | ||||||||||
| 15 | X | X | X | X | ||||||||||
| 17 | X | X | X | X | X | |||||||||
| 19 | X | X | X | X | X | X | ||||||||
| 21 | X | X | X | X | X | X | ||||||||
| 23 | X | X | X | X | ||||||||||
| 25 | X | X | X | X | X | |||||||||
Note: This chart may err a bit on the side of caution. Many cyclists exceed the recommended widths with no problem
Schwalbe have a more detailed chart here.