| 摘要 |
<p>The post (100) has an inner telescope pipe (1), a support chamber (3) and an avoidance chamber (4a) selectively connected with a support chamber by a valve (5). Walls of one of the chambers include an outer telescope pipe (2) that comprises a crossbar (9). The valve is arranged in a seat post head (7) of the post. The support chamber exhibits an upper region (3a), which includes a channel (11) in the inner telescope pipe. The channel runs over entire length of the inner telescope pipe.</p> |
