| 摘要 |
A rear hub, comprising: a hub tube coaxially rotatably mounted on a hub axle; a partially hollow drive body non-rotatably mounted part way along the hub tube to leave a hub tube extension portion; and a free hub body rotatably mounted on the hub tube extension portion by a sleeve bearing; wherein the free hub body is axially retained on the hub tube extension portion to partially underlie the drive body by a split ring receivable in opposing grooves in the drive body and the free hub body. |
