A wheel assembly includes a plurality of discreet, axially extending curved friction plates for engaging a first side of a spoke structure of a tire assembly, a first annular rim piece for engaging a rotatable axle, and a second annular rim piece for engaging the first rim piece. The first rim piece and the second rim piece each have axially extending lugs for engaging opposite ends of the friction plates.

Disclosed herein are systems and techniques for producing complex components using a reinforced thermoplastic material. The complex components can include contoured or curved outer surfaces, and in some cases define a cavity. In certain examples, one or more thermoplastic materials are arranged to form a wheel component, such as that adapted to define a rim of the bicycle. Thermal bonding can be used to join multiple reinforced thermoplastic materials to one another in order to form a cavity of the wheel component or other complex shape. In certain examples, a portion of a tooling assembly can be pressurized to maintain a shape of the cavity during thermal bonding and cooling. This can remove the need for a sacrificial bladder or other structure that would maintain the shape of the cavity, allowing for a seamless final component, optionally absent indicia of bladder exit or other seams.

The present invention applies to a molding method for a fiber-reinforced plastic structure having an internal cavity. Firstly, grain groups, which mainly consist of a plurality of high-rigidity grains, are accommodated in bags, and a plurality of cores are formed. A reinforcing fiber substrate, is placed between the plurality of adjacent cores so as to be interposed therebetween. For example, a plurality of molding base materials are prepared by surrounding each core with a prepreg, and the plurality of molding base materials are combined and placed inside a molding die, and the molding base materials are compression molded. When compression molding, a part of the outer surface of the cores is locally pressurized, and the internal pressure of the cores is increased, changing the shape thereof, thus eliminating voids that are present between the cores and the prepreg and/or the prepreg and the molding surface of the die.

A rim assembly for a bicycle wheel is disclosed. The rim assembly comprises: a rim configured to receive a rim component in an external surface thereof, and; a rim component located in the external surface of the rim, wherein the rim component forms part of the external surface of the rim, and wherein; the rim component has a lower density than the rim. A rim, insertable rim component and methods of manufacturing such a rim assembly are also disclosed.

Disclosed herein are systems and techniques for producing complex components using a reinforced thermoplastic material. The complex components can include contoured or curved outer surfaces, and in some cases define a cavity. In certain examples, one or more thermoplastic materials are arranged to form a wheel component, such as that adapted to define a rim of the bicycle. Thermal bonding can be used to join multiple reinforced thermoplastic materials to one another in order to form a cavity of the wheel component or other complex shape. In certain examples, a portion of a tooling assembly can be pressurized to maintain a shape of the cavity during thermal bonding and cooling. This can remove the need for a sacrificial bladder or other structure that would maintain the shape of the cavity, allowing for a seamless final component, optionally absent indicia of bladder exit or other seams.

A wheel assembly includes a wheel having an outer rim and a hub. A first coupling is applied to the hub. A non-return valve is housed in the first coupling, and a second fitting is applied separably between the hub and the outer rim to connect the outlet of the hub hole with the channel hole.

Disclosed is a wheel having a sphere at the hub of the rim which can rotate in all directions by the ball bearing it is supported by, wherein the sphere is produced from various metals, carbon fibre, etc. material. The wheel helps to prevent vehicles from skidding off tracks at turns even at high speeds or to prevent accidents that may occur as a result of swiping of vehicles with each other particularly during competitive racing.

A bicycle disc wheel comprises a first disc panel and a second disc panel. The first disc panel has a first side outer surface and a first side inner surface and the second disc panel has a second side outer surface and a second side inner surface. The first side outer surface radially extends from a first disc panel outer perimeter to a center opening and the second side outer surface radially extends from a second disc panel outer perimeter to the center opening. The second side inner surface faces the first side inner surface. A brace is coupled to the first side inner surface and the second side inner surface that provide radial and axial structural support to the disc panels.

A method for producing a product (200, 300, 400) comprising a composite fiber part (202, 402) and a second part (201, 401), wherein the second part (201, 401) comprises a carrier part (203, 403), wherein the carrier part (203, 403) is a replica of a press tool (301a, 301b) configured to be heated and to apply a pressure, comprising the steps of: applying (101), in a non-cured state, the composite fiber part (202, 402) on the carrier part (203, 403); arranging (103) the carrier part (203, 403) comprising the composite fiber part (202, 402) on the press tool (301a, 301b); curing (104a) the composite fiber part (202, 402) on the carrier part (203, 403); and removing (105) the product (200, 300, 400) from the press tool (301a, 301b), wherein after removal from the press tool (301a, 301b) the composite fiber part (202, 402) and the carrier part (203, 403) constitutes together at least a part of the finished product (200, 300, 400). Also disclosed is a composite fiber product comprising a composite fiber part and a second part.

A composite wheel includes a rim, a connecting ring, a plurality of spokes and a flange all connected in sequence from the outside to the inside. One end of each spoke is provided with a thread, and the other end of each spoke is provided with a first mounting hole.