A wheel is devised for a collapsible bicycle. The wheel includes a rim, a hub, and spokes. The rim, the hub and the spokes are made in one piece. The rim includes a ring extending along a center line and a clincher extending from an external face of the ring. The hub includes a first end, a second end, and a depth measured from the first end to the second end. The spokes extend to the center line of the ring from the first end of the hub so that a middle point of the depth lies in a plane defined by the center line.

A wheel structure with a built-in reducer and motor is provided. As the driving wheel in a rudder wheel, which has a high degree of integration and significantly reduces the overall height of the rudder wheel while maintaining high speed and acceleration. The wheel structure includes a wheel coupled to a reducer, a drive motor connected to the reducer, and the reducer.

There is provided a wheel device for a vehicle including: a wheel having an opening formed between adjacent spokes; a brake mechanism located inside the wheel in a vehicle width direction and having a brake caliper and a brake rotor; and an arc portion extending in a circular direction in the opening and suspended between the adjacent spokes. The arc portion has a recessed portion recessed outward in the vehicle width direction inside thereof in the vehicle width direction, and the arc portion and the brake caliper are located at such positions that they overlap with each other in a state viewed in the vehicle width direction.

There is provided a wheel device for a vehicle including: a wheel having an opening formed between adjacent spokes; a brake mechanism located inside the wheel in a vehicle width direction and having a brake caliper and a brake rotor; and an arc portion extending in a circular direction in the opening and suspended between the adjacent spokes. The arc portion has a recessed portion recessed outward in the vehicle width direction inside thereof in the vehicle width direction, and the arc portion and the brake caliper are located at such positions that they overlap with each other in a state viewed in the vehicle width direction.

A vehicle wheel includes a hub portion attached to a vehicle, a substantially cylindrical rim portion, and a plurality of spoke portions connected to the rim portion and the hub portion. The plurality of the spoke portions have a window portion that penetrates in a wheel axial direction. An inclined surface is provided on a wheel back side of each of the spoke portions such that the inclined surface inclines toward a wheel front side from a center in a wheel circumferential direction toward the window portion. The inclined surface is provided at a portion including one end portion or both end portions in the wheel circumferential direction.

A vehicle wheel includes a hub portion attached to a vehicle, a substantially cylindrical rim portion, and a plurality of spoke portions connected to the rim portion and the hub portion. The plurality of the spoke portions have a window portion that penetrates in a wheel axial direction. An inclined surface is provided on a wheel back side of each of the spoke portions such that the inclined surface inclines toward a wheel front side from a center in a wheel circumferential direction toward the window portion. The inclined surface is provided at a portion including one end portion or both end portions in the wheel circumferential direction.

A composite wheel assembly and method of construction thereof is provided. The composite wheel assembly includes a lightweight annular aluminum barrel having an inner surface and an outer surface configured to support a tire thereon. A lightweight metal central hub assembly is fixed to the barrel. The metal central hub assembly includes a central hub portion and plurality of support spokes extending outwardly from the central hub portion to free ends, wherein the free ends are fixed to the inner surface of the aluminum barrel. A wheel cladding contrasting in at least one of material type, color, texture and surface finish to an outwardly facing surface the central hub assembly is fixed to the outwardly facing surface of the central hub assembly.

A bicycle disc wheel includes two discs respectively formed of two composite material layers with a foam material bonded between the two composite material layers, a wheel frame arranged between the two discs in a concentric manner; and a spoke frame composed of a plurality of I-shaped ribs and sandwiched between the two discs. Each I-shaped rib is composed of a foam material and a composite material cladded on the foam material. Each I-shaped rib has a relatively wider opposite upper and lower sides and a relatively narrower middle section when it is viewed from the cross section, and the relatively wider opposite upper and lower sides of each I-shaped rib are respectively attached to the respective inner side of the two discs.

A bicycle disc wheel includes two discs respectively formed of two composite material layers with a foam material bonded between the two composite material layers, a wheel frame arranged between the two discs in a concentric manner; and a spoke frame composed of a plurality of I-shaped ribs and sandwiched between the two discs. Each I-shaped rib is composed of a foam material and a composite material cladded on the foam material. Each I-shaped rib has a relatively wider opposite upper and lower sides and a relatively narrower middle section when it is viewed from the cross section, and the relatively wider opposite upper and lower sides of each I-shaped rib are respectively attached to the respective inner side of the two discs.

The present application provides a composite wheel, including spokes, a rim and a central disc, one end of each spoke being connected to the central disc and the other end of each spoke being connected to the rim, each spoke includes a spoke skeleton and a spoke shell, and the spoke skeleton is wrapped by the spoke shell; and the spoke shell is made of plastic, rubber, nylon or resin. The technical solution of the present application brings the beneficial technical effects of overcoming the contradiction between the pursuit of the artistic design effect of the wheel and the pursuit of the lightweight of the wheel and meeting the strength requirement of the wheel.