| 摘要 |
A bicycle rear derailleur is provided that includes a base member, a movable member with a chain guide and a linkage mechanism. The linkage mechanism is coupled between the base member and a movable member to move the chain guide laterally. The base member is configured to be coupled to the bicycle frame. Preferably, at least part of the base member is configured and arranged to be rotatable about a pivot axis that is coincident with a center axis of a rear hub axle. Specifically, the base member preferably includes a fixing portion that is non-movably fixed to the frame and a derailleur support portion that is rotatable relative to the fixing portion. Moreover, the fixing portion preferably includes a cable support structure that is configured to support a derailleur control cable.
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