Size Chart
| サイズ | 内径(mm) | 内周(mm) | サイズ | 内径(mm) | 内周(mm) |
|---|---|---|---|---|---|
| 4 | 14.0 | 44.0 | 15 | 17.7 | 55.5 |
| 5 | 14.4 | 45.0 | 16 | 18.0 | 56.5 |
| 6 | 14.7 | 46.1 | 17 | 18.4 | 57.6 |
| 7 | 15.0 | 47.1 | 18 | 18.7 | 58.6 |
| 8 | 15.4 | 48.2 | 19 | 19.0 | 59.7 |
| 9 | 15.7 | 49.2 | 20 | 19.4 | 60.7 |
| 10 | 16.0 | 50.3 | 21 | 19.7 | 61.8 |
| 11 | 16.4 | 51.3 | 22 | 20.0 | 62.8 |
| 12 | 16.7 | 52.4 | 23 | 20.4 | 63.9 |
| 13 | 17.0 | 53.4 | 24 | 20.7 | 64.9 |
| 14 | 17.4 | 54.5 | 25 | 21.0 | 66.0 |