Patent attributes
A bicycle derailleur is provided that basically includes a base member, a movable member, a chain guide, a biasing element and a rotational resistance structure. The base member is configured to be mounted to a bicycle. The movable member is movably coupled to the base member. The chain guide is pivotally coupled to the movable member to rotate around a rotational axis with respect to the movable member. The biasing element biases the chain guide in a first rotational direction around the rotational axis with respect to the movable member. The rotational resistance structure is operatively arranged between the movable member and the chain guide to frictionally provide rotational resistance to the chain guide around the rotational axis in a second rotational direction. The rotational resistance structure applies the rotational resistance at an area disposed radially outward of the biasing element with respect to the rotational axis.