| 摘要 |
An eccentric wheel of a bicycle including a wheel body, a pair of tracks formed in parallel in the wheel body, one or more holes formed in each of the tracks, a block slidably engaged between the tracks for supporting a wheel axle of the bicyle, a pair of pins slidably engaged in the block and extendible outwards of the block for engagement with the holes of the tracks, and a spring biased between the pins for biasing the pins outwards to engage with the holes.
|
