A braking system is presented that comprises a brake sphere rotor that is mounted to the wheel hub of an axle. The braking system incorporates a caliper arm assembly that comprises at least one caliper arm. Each caliper arm further comprises hemispherical friction material located between the caliper arm and the brake sphere rotor.

A bicycle rim comprising a circumferential outer portion adapted to receive a tire and a spoke bed. The spoke bed may comprise a pattern of spoke attachment segments at varying tilt angles and spaced by intermediate segments. Each spoke attachment segment may comprise an inner surface, an outer surface and a spoke opening extending from the inner surface to the outer surface. The spoke opening may be sized to accommodate a spoke nipple. The spoke opening may have a central axis angled at a complex angle that is a combination of a respective camber angle and a respective crossing angle. The complex angle may be selected to achieve a respective spoke angle. The outer surface of the spoke attachment segment adjacent to the spoke opening may extend perpendicular to the central axis of the spoke opening.

A wheel assembly including a rim including a first rim hole extending through an inner surface and an outer surface of a rim at a first angle, the first angle being defined with respect to a center line through the wheel in a direction of travel at the location of the first rim hole and with respect to an axis radially normal to the rim, the first angle having a non-zero first component relative to the center line and a non-zero second component relative to the radially normal axis, a hub including a first hub hole, the first hub hole being formed at the first angle such that the first rim hole and the first hub hole are co-axial, and a first spoke extending between the first rim hole and the first hub hole, the first spoke being co-axial with the first rim hole and the first hub hole.

A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim. The rim also includes a first sidewall and a second sidewall spaced apart from the first sidewall. The first sidewall and the second sidewall extend radially outward from the radially inner portion. The first sidewall includes a layer of a composite material. The layer of the composite material includes fabric plies of the composite material that are shaped as strips. The composite material includes a matrix of a polymer-based material and fibers of a reinforcing material. The strips include a first strip and a second strip. The second strip is adjacent to the first strip within the layer of the composite material. The second strip is nonparallel to the first strip.

A wheel hub has a tubular body having a rotational axis and at least one spoke attachment part protruding radially outward from the tubular body. The spoke attachment part includes a cavity, a first spoke attachment hole, a first spoke head contact surface, a second spoke attachment hole, and a second spoke head contact surface. The cavity includes a spoke insertion opening that opens from the spoke attachment part in an axially outward direction parallel to the rotational axis. The first spoke attachment hole extends from the cavity in a first direction. The first spoke head contact surface is located adjacent the first spoke attachment hole. The second spoke attachment hole extends from the cavity in a second direction. The second spoke head contact surface is located adjacent the second spoke attachment hole.

A spoke wheel for a straddle-type vehicle includes a rim having an outer peripheral surface on which a tire is mounted and an annular shape, a hub supported by an axle on an inner side of the rim and having a tubular shape, and a plurality of wire spokes connecting the rim to the hub. The rim is formed with a plurality of spoke holes through which the plurality of wire spokes pass and support surfaces receiving head portions of the plurality of wire spokes on one end sides of the plurality of spoke holes. Each of the support surfaces has a groove shape extending in a wheel rotation direction.

A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim, a first sidewall, and a second sidewall spaced apart form the first sidewall. The first sidewall and the second sidewall extend radially outward from the radially inner portion. The radially inner portion includes a stack of strips of material. The stack of strips includes a plurality of strips and a hole through the plurality of strips. The plurality of strips are nonparallel to each other. The plurality of strips are positioned about the hole through the plurality of strips.

A human-powered vehicle wheel unit adapted to be attached to a human-powered vehicle hub. The wheel unit includes an accommodation portion and a first engagement portion. The accommodation portion is configured to accommodate at least part of the human-powered vehicle hub. The first engagement portion is provided on the accommodation portion. The first engagement portion is configured to transmit rotation of the human-powered vehicle hub to the accommodation portion through engagement with a second engagement portion provided on a flange projecting from an outer circumferential portion of a hub shell of the human-powered vehicle hub.

A wheel component for a wheel of an at least partially muscle-powered two-wheeled vehicle, including a rim provided to be connected with a hub by means of spokes, the rim including a rim base with a plurality of spoke socket sections having one spoke hole each, to which the spokes can be attached by means of spoke nipples. The wheel component includes at least one washer for placement between a spoke socket section and a spoke nipple. The washer includes a through hole extending between a top face and a bottom face. The rim base includes two opposite rim flanks extending obliquely relative to one another. In its bottom face, the washer shows a canted support flank at least in sections. The washer can be supported on the rim flanks by means of its support flank such that only the support flank bears against, and contacts, the rim.

A method of manufacturing a spoke, including: reshaping a wire material to obtain a spoke blank by a forging device; wherein the spoke blank includes pre-stages of the central section and the end portions and the transition sections; and wherein the pre-stages of the central section and the end portions are forged cylindrically; the pre-stages of the transition sections are forged conically, so that they show a diameter decreasing in the direction of the central section; wherein the pre-stages of the transition sections are each manufactured in a length which differs by a maximum of one fourth from the pertaining length of the transition section; reshaping the spoke blank by a shaping tool, which reproduces a negative shape of the spoke body, so that the spoke body is generated; wherein at least the transition sections and the central section are each provided with a cross-sectional geometry different from their pre-stages.