Freewheeling hub for a bicycle

The hub (10) has a sprocket arrangement (28) which is rotatably mounted on a hub axle (A). A freewheel coupling (34) is arranged between hub housing (22) and the sprocket arrangement. A freewheel coupling has coupling rings which couple to the hub housing and sprocket arrangement. A tooth system is provided in the coupling rings. The tooth system in a central radial region of the coupling rings is formed in the section of greater wall thickness. The section of reduced wall thickness of coupling rings is formed radially inside and outside the tooth system.