Bicycle wheel shroud

A wheel shroud for substantially covering and enclosing a spoked portion of a bicycle wheel which includes a pair of identical shroud members, each of which is disk-shaped and has a central aperature for receiving a wheel hub, an outer periphery sized to extend to a wheel rim, and a valve stem opening formed adjacent to the outer periphery having a reinforcing rib about its periphery which extends inwardly. The reinforcing ribs of the shroud members are shaped to form a through passage having a substantially closed wall which not only strengthens the shroud members in that area but prevents contaminants from entering an interior portion of the shroud. The shroud members also include pairs of opposing recesses having bottom walls that abut each other, when the shroud members are mounted on a wheel, to form spacer elements which space the outer peripheries of the shroud members an appropriate distance apart. Nuts and bolts extend through the recesses to clamp the shroud members together to enclose the spoked portion of a bicycle wheel. Each shroud member includes a reflector having an opening sized to receive a bolt for attachment to the shroud member.