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 wheel rim design with high safety margin and optimized strength-to-weight is described. The rim provides a tire bead supporting platform which defines a circumferential bead seat with minimum bead seat diameter equal to the standard tire bead diameter defined for a particular size of tire. Each tire bead seat defined along the rim circumference is comprised by a pair of circumferential ridges. The circumferential ridges comprise the external sidewalls of the rim and do not include tire bead hook features, and are of optimized sidewall thickness to add load strength and lateral stiffness, and resist crushing from impact. The interior ridges are increased diameter towards the medial plane of the rim to a value greater than the specified tire bead diameter. Given this geometry, the left lateral and right lateral of each tire bead is safely constrained within the defined bead seats under a wide variety of uses.

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.

A manufacturing method and structure of a carbon fiber rim is revealed. A metal strip is formed by heating a metal substrate to a moldable temperature and then extruded molding. The metal strip comprises two side walls, a connecting wall and an inner rim wall to form a space surrounded by the side walls, the connecting wall, and the inner rim wall. Next, two terminals of the strip are connected to form a circle as a rim frame's embryo. The two side walls, or the two side walls and the inner rim wall of the rim frame's embryo are milled to form plural through holes and become a rim frame. Afterwards, the surface of the rim frame is roughened and covered with a trimmed carbon fiber cloth having a predetermined shape. After heatsetting and surface treating, a carbon fiber rim having a light weight and a strong structure is obtained.

An electric vehicle motor with double disc brakes is provided, and relates to the field of electric vehicle motors. The electric vehicle motor includes a first disc brake, a motor body, fixed bolts and a second disc brake. A wheel rim is fixedly arranged on an outer surface of the electric vehicle motor. An upper shell is fixedly arranged at an upper end of the wheel rim, and a lower shell is fixedly arranged at a lower end of the wheel rim. The problem of braking may be well solved through double disc brakes, and traffic accidents due to poor braking of the electric vehicle at high speed, in long-time downhill periods or on rainy days may be effectively solved. Moreover, the first disc brake and the second disc brake are both made of aluminum alloy materials.

An electric vehicle motor with double disc brakes is provided, and relates to the field of electric vehicle motors. The electric vehicle motor includes a first disc brake, a motor body, fixed bolts and a second disc brake. A wheel rim is fixedly arranged on an outer surface of the electric vehicle motor. An upper shell is fixedly arranged at an upper end of the wheel rim, and a lower shell is fixedly arranged at a lower end of the wheel rim. The problem of braking may be well solved through double disc brakes, and traffic accidents due to poor braking of the electric vehicle at high speed, in long-time downhill periods or on rainy days may be effectively solved. Moreover, the first disc brake and the second disc brake are both made of aluminum alloy materials.

A variable thickness rim structure made of carbon fiber composite includes an outer ply block, that is paved as an outer side of the rim structure; an upper ply block, that is paved as an upper part of an inner side of the rim structure; a lower ply block, that is paved as a lower part of the inner side of the rim structure; a filling ply block, that is paved among the outer ply block, the upper ply block, and the lower ply block, where a first end of the upper ply block and a first end of the lower ply block extend inwards to form an annular connecting flange; a second end of the upper ply block extends upwards and a second end of the lower ply block extends downwards to form a rim ring together with the outer ply block.

A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim, a first sidewall, a second sidewall spaced apart from the first sidewall, a radially outer tire engaging portion disposed along an outer circumference of the rim, and an opening. The first sidewall, the second sidewall, the radially outer tire engaging portion, the radially inner portion, or any combination thereof includes a composite laminate. The composite laminate includes one or more compressed layers of a first composite material, which includes a matrix of a polymer-based material and natural fibers for a reinforcing material, and one or more compressed layers of a second composite material that is different than the first composite material. The opening extends through at least one layer of the one or more compressed layers of the second composite material, such that the second composite material surrounds the opening.

A bicycle wheel including a hub and a rim coupled to the hub. The wheel also includes a cover that is coupled to rim and that defines a bead seat engageable by a tire. The rim can have a first annular feature and the cover can have a second annular feature that is complementary to the first annular feature to attach the cover to the rim.

The invention is directed to a vehicle wheel (1) comprising a rim (2) for receiving a tire at its radially outer side (3) and provided with an edge along the circumferential of the rim at its radially inner side, a wheel hub connected to the rim via a support element, wherein the material of the rim and the support element are different, the support element provided with openings at its end facing the rim to receive a connecting element, the edge of the rim provided with openings in line with the openings of the support element and wherein the support element is connected to the rim via the connecting elements present in the openings in the edge and in the openings of the support element, wherein the opening in the edge is a radial elongated opening or is a indentation in the edge or the openings in the support element are radially elongated openings or indentations.