Patent ID: 6557657
Filing Date: 2003-05-06
Classification: B62M

Abstract:
In a bicycle wheel having a rim, an axle which is suitable for attachment to a bicycle frame, a hub mounted for rotation on the axle, the hub having a first diameter, the hub including first and second end portions and first and second spoke anchoring rings connected to the hub near its ends at axially spaced locations, the anchoring rings each having inner and outer radial surfaces and a second diameter greater than the first diameter of the hub, a plurality of spokes attached to the spoke anchoring rings and to the rim, the improvement comprising an add-on disc assembly, including:an outer disc adapted for engagement with an outer clamping surface, the outer clamping surface comprising at least one of one end portion of the hub and an outer radial surface of the spoke anchoring ring nearest said one end portion of the hub; a backing member engageable with an inner clamping surface, the inner clamping surface comprising at least one of the inside radial surface of the spoke anchoring ring nearest said one end portion of the hub, the other of the end portions of the hub, and the spoke anchoring ring farthest from said one end portion of the hub; and at least two arms connected to the outer disc, the arms extending over the spoke anchoring ring nearest said one end portion of the hub and engaging the backing member, the arms being adjustably connected to at least one of the outer disc and backing member to permit the separation between the outer disc and backing member to be adjustably fixed and thereby clamp the outer disc and backing member to the inner and outer clamping surfaces respectively.