A rim for a bicycle wheel that includes a tire, hub and spokes. The bicycle rim generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion, a first sidewall and a second sidewall spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid. A maximum width of the rim is disposed closer to the spoke-engaging portion than the tire-engaging portion.

A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. Another embodiment of the invention is directed to a bicycle wheel including the embodied rim, a plurality a spokes engaged at respective ends thereof with the rim and a hub engaged with the plurality of spoke members at opposite ends thereof. Another embodiment of the invention is directed to a bicycle wheel assembly comprising the embodied wheel and a tube and/or tire mounted on the rim.

Herein is described a non-metallic rim for a wheel, the rim comprising: a barrel having first and second flanges extending radially outward from opposing edges of the barrel, and the barrel comprising a first bead seat and a second bead seat arranged axially inwardly, respectively, of the first and second flanges, wherein a primary structural component extends at least through the first flange and the barrel, the primary structural component being capable of bearing the majority of the radial and/or lateral load that, in use, would be borne by the rim a protective insert is disposed between an outer face of the first flange and the primary structural component and/or at least a portion of the first bead seat is spaced apart from the primary structural component and the primary structural component, bead seat and, if present, the protective insert are bound by a polymer matrix.

A bicycle rim comprises a radially outer peripheral part, a radially inner peripheral part, at least one sidewall, and at least one cover member. The at least one side wall radially extends between the radially outer peripheral part and the radially inner peripheral part. The at least one side wall comprises at least one opening. The at least one cover member covers the at least one opening, and the at least one cover member comprises a metallic material.

The disclosure provides a wind-breaking rim, a wheel and a bicycle. The wind-breaking rim includes a plurality of rim wave profiles. The plurality of rim wave profiles extend from an inner ring spoke mounting portion to two rim side walls and are symmetrically distributed with a rim width center surface as a plane of symmetry. The plurality of rim wave profiles are continuously arranged to form an annular wind-breaking structure. The rim wave profiles include adjacent crest portions and trough portions. A rim inner ring and the rim side walls having wave profiles can greatly reduce wind resistance.

A method for producing a motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle, the motor vehicle rim having a rim base limited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle, and a rim center connecting the rim base and the hub to one another. The motor vehicle rim is produced in one piece and continuously in a casting mold by die casting of a casting material, the casting material being the aluminum alloy.