Derailleur for a bicycle

Abstract

The invention relates to a rear derailleur for a bicycle gearing system comprising: a base element which can be fitted to a bicycle frame; and a movable element which is coupled to the base element by a pivot mechanism and which can be displaced relative thereto in a pivotably movable manner, wherein the pivot mechanism is pivotably movable both relative to the movable element and relative to the base element. The rear derailleur comprises for easier adjustment of the chain tension a blocking device which is configured to at least temporarily secure the movable element relative to the base element, wherein the blocking device is configured in such a manner that the pivot mechanism can be temporarily secured by a direct coupling relative to the base element or relative to the movable element in at least one predetermined blocking position.

Dependencies are inferred from the claim text.