A bicycle rear derailleur is provided with a base member, a movable member, a moving mechanism and an angular adjustment arrangement. Providing the well and the edge includes processing the first conductive, insulating, and second conductive layers by at least one of lift-off processing, photolithography processing, and processing with the use of a pre-formed insulating layer having at least one opening associated with a location of the well. The claw is a rotationally symmetrical turned part, and the housing includes at least two bushes 5, 6, 7; 7, 15 inserted concentrically one into another, which together define a hollow cylinder and an intermediate space.