| 摘要 |
<p>The hub axle adapter (10) has hub axle adapter main portion (11) that is inserted into bicycle hub. The bicycle hub is provided with hollow hub axle and holding element (12). The holding element is provided at outer surface of the hub axle adapter main portion, to contact with inner surface of the hollow hub axle. The hub axle adapter main portion is provided with retaining groove (11d) for holding the holding element. The holding element is provided with O-type ring that is made of resilient material.</p> |
