Bicycle wheel hub

A freewheel hub for a bicycle, comprising:

• a hub axle;
• a hub sleeve which is mounted rotatably on the hub axle;
• a driver which is mounted rotatably on the hub axle and can be connected to at least one sprocket arrangement;
• and
• a freewheel device arranged between the hub sleeve and the driver, comprising:
• a first clutch ring, which is coupled or couplable to the hub sleeve in a torque-transmitting manner,
• a second clutch ring, which is coupled or couplable to the driver in a torque-transmitting manner,
• wherein the first clutch ring and the second clutch ring have mutually facing axial toothings, and a single preload device which is arranged to preload, in a single axial direction, the two clutch rings axially towards one another, wherein the single preload device has a spring arrangement with at least one spring element that includes a plastic with a cellular structure, the spring element having an arcuate portion, the convex side of which is configured to press against one of the clutch rings in the single axial direction in order to preload the two clutch rings against one another.