Abstract: A device for switching a chain on different sprockets of a pedal bearing mounted to a seat tube of a frame of a bicycle. The chain switching device includes a cage which can be economically manufactured in a plurality of constructions and readily mounted on different bicycle frames with different angles between a seat tube and a chain brace in order to achieve optimum operating angles with appropriately modified cages. The different cage constructions are manufactured from a single sheet metal blank and have brackets arranged at different positions and of different lengths which are formed by appropriately positioning their bending edges to attach the cage to a parallel guide device.