A rim assembly for a bicycle wheel, comprising a rim having generally opposing first and second wall sections configured for mounting a bicycle tire, each of said first and second wall sections comprising an outwardly facing recess and; a rim component located in each recess, wherein each rim component has a lower density than the rim, wherein the rim components do not form part of a braking section of the bicycle wheel.

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.

The invention relates to an equipment for a bicycle wheel. The equipment comprises at least one profiled wing-shaped projection adapted to be secured to the inner surface of the rim of the wheel.

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.

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.

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.

This invention is related to a lightweight process of manufacturing a bicycle's rim and a rim structure manufactured thereby. A rim frame comprising an inner frame, a cladding part, and a support part between the inner frame and the cladding part. The inner frame and the support part are milled to form plural through holes uniformly distributed thereon. The areas occupied by the through holes is 35% to 85% of a total surface of the inner frame and the support part. Moreover, a proper distance is formed between the adjacent through holes in the process, and a carbon fiber layer covers the outer surface of the rim frame. Therefore, the weight of the bicycle's rim is decreased, and the carbon fiber layer can stably attach on the rim frame to increase the structural strength of the rim.

Carbon fiber bicycle wheels are formed from parts cut from carbon fiber cloth and then joined together to form a rim, sidewalls, spokes, flanges and a center tunnel on which the flanges are mounted. The parts are then assembled, bonded together, and cured to form a wheel. During assembly, the spokes and the wheel are placed in tension by moving the flanges outwardly on the center tunnel after assembly and then bonding them in place to stiffen and strengthen the wheel. The spokes of the drive side of the rear wheel are specially shaped to accommodate torque transfer forces generated by pedaling.

Water drain holes, located through the sidewalls of hollow rims for vehicle wheels not sealed from water ingress, is described herein to provide an egress for accumulated water. The water drain holes in a wheel rim can be for any type of vehicle utilizing a hollow rim design for wheels when not sealed from water ingress. Without drain holes, accumulated water inside a hollow rim adds significant weight, which produces undesirable effects, such as resistance to the vehicle driver input to accelerate, steer, and otherwise control the vehicle, such as but not limited to a bicycle. Also, accumulated water inside a hollow rim enables increased galvanic current conductivity, producing corrosion.

A carbon fiber rim comprises a circular rim and a heat conduction layer. The circular rim comprises carbon fiber composites, and has two opposite side surfaces facing two brake pads and two opposite hooks extending outward radially to hold tires. The heat conduction layer is arranged on the side surface of the circular rim for forming a braking region facing the brake pad. The heat conduction layer comprises a porous or mesh heat conduction material. A bicycle including the aforementioned carbon fiber rim and the manufacturing method of the carbon fiber rim are also disclosed here. The carbon fiber rim can prevent distortion due to frictional heat when braking.