| 摘要 |
A bicycle rear derailleur includes a base member, a movable member, a torsion spring, a linkage assembly and a damping member. The base member is configured to be attached to a bicycle frame. The movable member includes a support portion and a chain guide coupled to the support portion. The torsion spring is disposed about a pivot member of at least one of the base member and the movable member. The linkage assembly is coupled between the base member and the support portion to move the chain guide between a retracted position and an extended position. The damping member is at least partially disposed between an adjacent pair of coils of the torsion spring.
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