
Specifications
For Ф20.5(.812") Rim Hole:
| No. | Item | A | B | D | γ 。 | Core | Cap | Grommet | Nut |
| 1 | V3.17.1 | 31.5 | 99 | Ф31 | 172 | C1 9002 | F-Cap | V9.11.2 | V9.13.1 |
| 2 | V3.17.2 | 31.5 | 116 | Ф31 | 172 | C1 9002 | F-Cap | V9.11.2 | V9.13.1 |

For Ф20.5(.812") Rim Hole:
| No. | Item | A | B | D | γ 。 | Core | Cap | Grommet | Nut |
| 1 | V3.17.1 | 31.5 | 99 | Ф31 | 172 | C1 9002 | F-Cap | V9.11.2 | V9.13.1 |
| 2 | V3.17.2 | 31.5 | 116 | Ф31 | 172 | C1 9002 | F-Cap | V9.11.2 | V9.13.1 |