Abstract: Embodiments described herein provide aerodynamic bicycle rims and wheels. Embodiments can include a bicycle rim that is wider than the width of the tire proximate to the outer edge of the rim and is shaped so that there is a tangent line tangent to the rim and the tire. The tangent line can be tangent to the rim on the sidewall or elsewhere on the rim. The widest part of the rim can be radially inward from the outer edge of the rim or elsewhere on the rim and the tangent line can be tangent at the widest part of the rim or elsewhere on the rim.

Abstract: A FRP rim for a bicycle, including a radially outer tire-engaging portion and a radially inner spoke-engaging portion. A first sidewall is in a spaced configuration with a second sidewall. The first and second sidewalls extend between the radially outer tire-engaging portion and the radially inner spoke-engaging portion. A brake track is disposed on each of the first and second sidewalls including a layer of microparticles.

Abstract: A composite bicycle wheel is provided with a first circumferential side wall, a second circumferential side wall and an outer bridge. The first circumferential side wall has a radial inner end and a radial outer end. The second circumferential side wall has a radial inner end and a radial outer end. The outer bridge connects the radial outer ends of the first and second circumferential side walls. At least one of the outer bridge and the first and second circumferential side walls includes a vibration suppression layer.

Abstract: A vehicle wheel having a rim, or a rim of a vehicle wheel, is provided wherein the rim consists of a fiber-reinforced plastic material in the form of several layers of a fiber-reinforced semi-finished plastic product. The layers are shaped to form a finished component in a press while heat is supplied. The rim conventionally consists of a rim well, whose two sides are adjoined by a rim shoulder, which transitions into a rim flange. The rim well is formed by several layers of a base laminate, which extends to the rim flange, between which layers further layers are inserted in the area of the rim shoulder as well as of the rim flange. The further layers have an essentially tangential fiber alignment.

Abstract: The invention relates to a bicycle component, for example a rim, comprising a body made from aluminium and a body made from composite material coupled with a first surface portion of the body made from aluminium. Such a first surface portion has been subjected to a deoxidation surface treatment. An adhesive substance has been then applied on at least part of said first surface portion for gluing the body made from aluminium to the body made from composite material. A second surface portion of the body made from aluminium has been subjected to an oxidation surface treatment with subsequent fixing of the oxide.

Abstract: A wheel hub includes a wheel rim and a support. The wheel rim has an inner rim surface, an outer rim surface and a connection concave. The wheel rim is composed of a metallic layer and a carbon fiber layer. The outer rim surface has an outer wall to be the metallic layer. The wheel hub is composed of the metallic layer and the carbon fiber layer. Compared to the conventional wheel hub made of a single metallic material or a carbon fiber material, the wheel hub made of metal and carbon fiber of the present invention is light in weight, endurable, and cost-effective. The outer wall of the outer rim surface of the conventional wheel hub is easily to be damaged by an external force when in use, which result in a break of the carbon fiber to lose the strength of the carbon fiber.

Abstract: A composite rim for a bicycle wheel generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion and first and second sidewalls. The second sidewall is spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The rim includes at least one through-hole and a pattern of through-thickness stitching reinforcement at the through-hole. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid.

Abstract: The invention relates to a device for producing a toroid-shaped fiber composite product. The device comprises at least two fiber or fiber composite material dispensing units (2, 3), the dispensing units being adapted to place a fiber (4) or a fiber composite material onto the surface of a toroid-shaped mandrel (5); positioning means to effectuate relative movement of the mandrel and the dispensing units during placement of the fiber or fiber composite material. The invention further relates to a method for producing a toroid-shaped fiber composite product, preferably with a concave cross-section, in particular the rim of a bicycle wheel. The method comprises providing a toroid-shaped mandrel, dispensing fibers or fiber composite material from at least two dispensing units, placing the fibers or fiber composite material onto the mandrel while effectuating a relative movement of the mandrel and the dispensing units, and reshaping at least part of the mandrel, preferably by thermoforming.

Abstract: According to the present invention, a bicycle rim comprises a rim body and a reinforcement layer. Each of the rim body and the reinforcement layer is constructed of carbon fiber, and the reinforcement layer is integrally formed on the rim body.

Abstract: A composite rim including a reinforcing assembly is provided. The composite rim includes a first sidewall portion, a second sidewall portion, a radially outer portion and a reinforcing assembly. The radially outer portion includes a radially outwardly-facing tire-engaging surface. The reinforcing assembly is disposed proximate the tire-engaging surface and includes a reinforcer and a containment member for containing the reinforcer. The reinforcer has an axis extending circumferentially about the composite rim and is configured to reinforce the composite rim in a direction generally perpendicular to the axis of the reinforcer.

Abstract: A wheel rim comprising a lip formed on the wheel rim, the lip running parallel to the circumference of the rim. A method of forming a lip on a wheel rim, the method comprising: forming fiber layers on an upper and lower portion of a mold; forming fiber layers on an upper and lower portion of a mold; curing the fiber layers; removing the cured rim from the upper and lower portions of the mold; in which the internal surface of the lower portion of the mold comprises an indention that, once the fiber layers are cured, creates a lip on the surface of the rim.

Abstract: According to the present invention, a carbon bodied bicycle rim with ceramic brake portion comprises a carbon bodied bicycle rim and a protective film thermal sprayed on the carbon bodied bicycle. The carbon bodied bicycle rim includes two brake portion respectively formed on two sides thereof. Each brake portion has an outer surface. The protective film is thermal sprayed on the outer surface of the brake portion, by which the brake portion has a characteristic of wear-resisting and thermal dissipation. The protective film includes an aluminum layer thermal sprayed on the brake portion and a ceramic layer thermal sprayed on the aluminum layer.

Abstract: A wheel rim for a human powered vehicle includes a rim with a braking surface and a wear indicator located beneath the braking surface, such that when the braking surface is worn away, the wear indicator is visually exposed. A method for determining if a predetermined amount of rim wear has occurred in a rim braking human powered vehicle is also provided.

Abstract: A rim and a method of producing a rim for bicycles and the like includes a rim body and a rim base provided thereon and lateral rim flanks provided with rim flanges. The rim flanges include a fibrous composite material having at least one fiber layer. The rim flanges include inwardly overhanging bulges of squashed fiber layers between which a tire can be accommodated at the rim body.

Abstract: A composite rim for a bicycle wheel generally includes a radially outer tire-engaging portion, a radially inner spoke-engaging portion and first and second sidewalls. The second sidewall is spaced apart from the first sidewall. The first and second sidewalls extend between the tire engaging and spoke-engaging portions. The rim includes at least one through-hole and a pattern of through-thickness stitching reinforcement at the through-hole. The tire-engaging and spoke-engaging portions and first and second sidewalls form a toroid.

Abstract: A fiber reinforced plastic bicycle wheel rim is formed of six segments per side and formed in a section having precisely formed, machinable brake surfaces and preferably combining inner high modulus fiber reinforced plastic lamination as a main structural body and an outer lamination of improved frictional coefficient materials at the braking surfaces. The main structural body with overlapped individual sheets of unidirectional fiber reinforced plastic, having crossing fibers, in segments, and continuous unidirectional fiber bundles in areas of concentrated load, enables strong, light wheels for sew up or clincher tires to be formed.

Abstract: A wheel hub includes a wheel rim and a support. The wheel rim has an inner rim surface, an outer rim surface and a connection concave. The wheel rim is composed of a metallic layer and a carbon fiber layer. The outer rim surface has an outer wall to be the metallic layer. The wheel hub is composed of the metallic layer and the carbon fiber layer. Compared to the conventional wheel hub made of a single metallic material or a carbon fiber material, the wheel hub made of metal and carbon fiber of the present invention is light in weight, endurable, and cost-effective. The outer wall of the outer rim surface of the conventional wheel hub is easily to be damaged by an external force when in use, which result in a break of the carbon fiber to lose the strength of the carbon fiber.

Abstract: In a wheel rim including fiber reinforced composite material and preferably having lateral rim sidewalls that may include rings.

Abstract: A cycle rim that includes a metallic profile element, a covering made of composite material and including fibers embedded in a first matrix that covers the metallic profile element, at least over a portion thereof, and further including a spacer which is inserted between the profile element and the covering. The metallic profile element includes at least two sidewalls connected by a bridge, the covering including at least two flanks, each of the flanks covering one of the sidewalls, and the spacer is inserted between each of the sidewalls and the flank which covers it.

Abstract: A composite rim (1) for a bicycle wheel (60). The rim has at least one braking surface (20) and a wear indicator (40) that indicates when a predetermined level of wear has been reached at the braking surface (20). The wear indicator (40) is arranged in the rim (1) so that its does not affect the outer surface of the rim (1) or weaken its mechanical strength.

Abstract: The present invention relates to a method for producing a rim ring for a wheel rim, in particular for a wired-on wheel rim, with the following steps: providing an outer rim profile made of hardened composite fibrous material, providing a plastic shaping element, providing at least one top layer made of composite fibrous material, inserting the plastic shaping element radially within the outer rim profile, and positioning the top layer relative to the plastic shaping element and to the outer rim profile such that at least part of the top layer extends from the plastic shaping element onto the outside of the outer rim profile. The present invention further relates to a method for fastening spokes made of composite fibrous material to a rim ring. Finally, the present invention also relates to a rim ring, a wired-on wheel rim and a bicycle with wired-on wheel rims.

Abstract: A composite rim of the present invention includes a metallic outer sub-rim and a carbon composite material based inner sub-rim. The outer sub-rim is an integrated structure and has an inner surface, on which the inner sub-rim is attached. Thereby, the material consumption is reduced and the mechanical strength is maintained in the meanwhile.

Abstract: Embodiments of the present invention comprise a composite rim for used in spoked wheels, such as bicycle wheels, having molded-in spoke holes along with a method of fabricating the composite rim. Advantageously, the bearing and loading strength of the rim is improved over prior art composite rims wherein the spoke holes are drilled therein after fabrication of the rim hoop.

Abstract: A rim and a method for manufacturing a rim in particular for bicycles in which first a rim body is manufactured having a hollow space with a radially outer and a radially inner hollow-space wall. The radially outer hollow-space wall has a diameter matched to the diameter of a tube tire and the radially inner hollow-space wall has a diameter matched to the diameter of a wire tire.

Abstract: A bicycle rim is basically provided with an annular metallic rim member and a reinforcing member. The annular metallic rim member includes a plurality of spoke attachment areas with at least one spoke attachment opening in each of the spoke attachment areas. The reinforcing member overlies an exterior surface of the annular metallic rim member. The reinforcing member includes a plurality of spoke attachment sections individually arranged in a circumferential direction to overlie the spoke attachment openings. The spoke attachment sections include a plurality of discrete first reinforcing parts and a plurality of discrete second reinforcing parts. The first reinforcing parts are attached to the spoke attachment areas around the spoke attachment openings. The second reinforcing parts are attached to the spoke attachment areas to overlie the first reinforcing parts, with the second reinforcing parts being larger than the first reinforcing parts.

Abstract: A composite rim including a reinforcing assembly is provided. The composite rim includes a first sidewall portion, a second sidewall portion, a radially outer portion and a reinforcing assembly. The radially outer portion includes a radially outwardly-facing tire-engaging surface. The reinforcing assembly is disposed proximate the tire-engaging surface and includes a reinforcer and a containment member for containing the reinforcer. The reinforcer has an axis extending circumferentially about the composite rim and is configured to reinforce the composite rim in a direction generally perpendicular to the axis of the reinforcer.

Abstract: A composite rim (1) for a bicycle wheel (60). The rim has at least one braking surface (20) and a wear indicator (40) that indicates when a predetermined level of wear has been reached at the braking surface (20). The wear indicator (40) is arranged in the rim (1) so that its does not affect the outer surface of the rim (1) or weaken its mechanical strength.

Abstract: A process for coating a non-uniform, thin-film, dichroic pattern to a wheel rim or motorcycle part. The thin-film coating adds a colored or iridescent pattern to the wheel rim or motorcycle part, while maintaining other characteristics, such as brilliance, shine, durability and general appearance. The coating is intentionally non-uniform. It may be varied, and may have different patterns and color among different articles, and even among different areas on the same article. The thin-film coating may be added by various techniques known in the art, but is preferably applied by sputtering a silicon or titanium target to obtain the thin-film on a chromed wheel rim.

Abstract: A bicycle wheel rim and a method of making a bicycle wheel rim are provided. The rim provided is made of a single part using structural fiber based material, preferably carbon fiber material, with two circumferential flanges for anchoring the tire, which extend radially outwards from the two sides of the outer peripheral wall of the rim.

Abstract: A fiber reinforced plastic bicycle wheel rim having an aerodynamic section is formed of two mating halves, without additional structural reinforcing members, using laminations of layers of unidirectional fibers crossing one another and having semicircular layers of non-crossing fibers orientated parallel to a point of tangency, the non-crossing layers being proximate tire well apexes and the spoke bed, including, in a preferred embodiment, a lamination of machinable materials at the braking surfaces.