A V-shaped wheel spoke made of carbon fiber material is provided. The bottom part of the spoke is provided with a first through hole for placing a bolt when the spoke is connected with a wheel rim. The spoke has two legs, the top portion of each of the two legs is provided with a second through hole for placing bolt when the two legs are connected with flanges at left and right sides of a hub. With this design, the conventional connection structure consisting of spokes and nipples has been abandoned, and bolts or fastening structures are used for connection. The two legs of the spoke are respectively connected to the flanges at the left and right sides of the hub with bolts or fastening structures, such that the overall structure forms a stable triangle which greatly improves the strength and stiffness of the wheel.

Axle shaft assemblies for use with a vehicle include a shaft formed from a first material having a first modulus of elasticity for providing the shaft with a flexibility adapted to withstand side impacts and resist deformation. A first end member can be engaged with a first end of the shaft, and a second end member can be engaged with the second end of the shaft. The end members can be formed from a second material having a second modulus of elasticity greater than the first, such that the end members are adapted to withstand a rotational force. The end members can include splined connectors, hub flanges, and other similar components. The resulting axle shaft assembly can thereby include modular combinations of materials having low and high moduli of elasticity.

A flanged bearing ring comprising a flange part joined to a ring part. The flange part is at least partly made of a fiber-reinforced matrix material, which is overmolded to the ring part. The flange part further comprises a first connection interface for enabling a component such as a vehicle wheel to be screwed or bolted to the flange part. The first connection interface comprises a plurality of bolt inserts which are embedded in the fiber-reinforced matrix material. At least one bolt insert is joined to the ring part by a continuous fiber tow that is wound around part of an outer surface of the bolt insert and of the ring part. Suitably, each bolt insert is joined to the ring part in this manner.

A wheel with flexible spokes, including a rim and hub, and spokes between the rim and hub made of fibrous material that causes the spokes to be both lighter in weight and stronger than comparable steel spokes. The spokes are also flexible and resilient such that they can bend while retaining their integrity and strength.

A wheel includes a first hoop attached to a second hoop about a circumferential interface. The first and second hoops form at least part of an enclosed box structure positioned circumferentially around the wheel and adjacent to an outboard side of the wheel. The box structure may be formed at least in part by circumferential projections of the first hoop and the second hoop. The wheel may also include a central hub that optionally includes spokes. In some embodiments, the central hub may form part of the enclosed box structure. In some embodiments, a first hoop portion and a second hoop portion may be integral or unitary, with a box structure integrally formed between the hoop portions.

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.

Provided is a wheel which is inexpensive, light, and sufficiently rigid. A wheel 6a includes an annular rim 60 to which a tire 6b is externally fitted, a hub 61 which is arranged at a center portion of the rim 60 and to which an axle is connected, and a disk 62 which is attached with the rim 60 at a periphery portion and which covers one side of the wheel 6a. The disk 62 includes a planar portion 62a and a first rib 62b provided at a surface of one side of the planar portion 62a and extending in the radial direction. The planar portion 62a is provided with a first groove 62d at a surface of the other side at a position corresponding to the first rib 62b.

A wheel with flexible spokes, including a rim and hub, and spokes between the rim and hub made of fibrous material that causes the spokes to be both lighter in weight and stronger than comparable steel spokes. The spokes are also flexible and resilient such that they can bend while retaining their integrity and strength.

A non-pneumatic tire may include a hub configured to be coupled to a machine, an outer circumferential barrier radially spaced from the hub and configured to be associated with a tread portion of the tire, and a plurality of support members extending between the hub and the outer circumferential barrier and being configured to support a load on the hub in tension. At least some of the plurality of support members may include at least one tension member coupled to one of the hub and the outer circumferential barrier, and an intermediate member coupled to the at least one tension member and one of the hub and the outer circumferential barrier. The at least one tension member may be configured not to transmit compressive load to the intermediate member.

A bicycle rim is basically provided with a first annular side wall, a second annular side wall and an annular bridge. The first annular side wall includes a first braking contact portion. The second annular side wall includes a second braking contact portion. The annular bridge extends between the first and second annular side walls. At least one of the first and second braking contact portions has a plurality of soft additives at least partially embedded in a non-metallic layer.