Abstract: An external-rotor dynamo for the rear wheel of a bicycle is pivotable about an axis parallel to its axis of rotation. The rotor is pressed toward the wheel rim by a helicoidal torsion spring secured along the axis of rotation in separate bearings. One of these bearings is angularly adjustable via a quick-acting but releasable ratchet.

Abstract: A pedal for a bicycle with a foot-holding stirrup which extends over the forward area of a foot placed onto the upper side of the pedal and the ends of which are connected to the pedal. In the pedal, the foot-holding stirrup extends to the underside of the pedal and has ends bent upwards which may be introduced into plug openings formed in the underside of the pedal. This construction decreases costs and makes possible an adjustable attachment of the foot-holding stirrup to the pedal.

Abstract: A reflector for bicycle pedals with a holding frame and locating contours for fastening the reflector to the pedal. The holding frame receives a reflector lens of light-transmitting material, with a rear-side reflection surface protected against dirt and moisture by a mask. The mask is made an integral part of the holding frame and the reflector lens is permanently joined to the holding frame. The mask on the rear-side of the reflector lens may be a bottom plate closing the holding frame on the rear. The reflector lens may have a rim flange enclosing the reflector surface and projecting rearwards and joined permanently to the bottom plate by gluing and fusing. Locating contours in the form of holding lugs extend in the region of the holding frame on the bottom plate side away from the holding frame.

Abstract: A cable connection for use in conjunction with electrical equipment, particularly lighting equipment for bicycles, in which an insulator is provided with a contact member fastened therein. The contact member establishes electrical contact between at least one outside conductor leading to the exterior of the equipment, and an inside conductor leading to the interior of the equipment. The contact member applies stress to the conductors to maintain them in electrical contact by jamming or clamping against the conductors. The contact member is pressed into a recess of the insulator, and at least one of the conductors is jammed or clamped between the edges or walls of the recess, while the contact member is jammed into the latter.