| 摘要 |
<p>A bottom bracket connects a swing arm (5) with a frame (10), which comprises a member (50) rotatably supported relative to the frame (10), a hollow pin (20) fixedly connected to the swing arm (5) and also contains the hollow pivot (20) relative to the frame (10) rotatably mounted shaft, the center line of the storage member (50) relative to the frame (10) is intersecting or skew the axis of the storage shaft relative to the frame (10).</p> |
