| 摘要 |
<p>The bicycle (1) has a bicycle frame (2) comprising a bottom bracket housing (3), and chain wheels (4, 4', 4'') and chain. A chain guide (5) includes a height adjustable chain conducting device (6) whose position is changed, when the position of the chain is changed. The chain conducting device is attached to the bottom bracket housing of the bicycle frame using a parallelogram guide (7). A plane of a parallelogram part (9) of the parallelogram guide runs parallel to a plane of the level of chain bars (8, 8').</p> |
