| 摘要 |
A bicycle is provided to control the distance between a pair of sprockets easily and conveniently by having a tension control member and a movement control unit. A bicycle includes a tension control member(26) and a movement control unit(28). The tension control member is installed between a pair of sprockets, winds chain thereon, and moves or rotates on a frame(20) to wind the chain tight when the distance between the sprockets is changed. The movement control unit controls movement of the tension control member for convenient control of the distance between the sprockets. |
