| 摘要 |
<p>A bicycle hub fastening structure (43) employs an easy-to-connect connecting structure to improve the ease and efficiency with which an internally geared bicycle hub (30) is fastened to a bicycle frame (22,24). The fastening structure has a nut member (57), a rotation prevention member (58) and a connecting part (59). The nut member has a first contact surface (57a) and a threaded bore (57b). The rotation prevention member (58) has a cylindrical main body (58b) with a second contact surface (58a) contacting the first contact surface (57a), a first (frame) restricting part (58c) configured to restrict rotation relative to a bicycle frame (24), and a second (hub axle) restricting part (58d) configured to restrict rotation relative to the hub axle (42). The connecting part (59) has a retaining member attached to the nut member (57) and serves to connect the nut member (57) and the rotation prevention member (58) together in a freely rotatable manner.</p> |
