A rim portion of a vehicle wheel has an outer flange portion. In a region of the outer flange portion, a space portion between spoke portions is disposed on a radial-direction inner side, a first inclined surface and a second inclined surface are provided. The first inclined surface is provided on an axial-direction outer side of an outer flange outer circumferential portion. The second inclined surface is on an axial-direction outer side of an outer flange inner circumferential portion. The first inclined surface is formed to incline from the axial-direction outer side toward an axial-direction inner side as the first inclined surface extends from a radial-direction outer side end toward the radial-direction inner side. The second inclined surface is a surface formed to incline from the axial-direction inner side toward the axial-direction outer side as the second inclined surface extends from the radial-direction outer side toward the radial-direction inner side.

A safety hub against tire burst includes a hub body. The hub body includes an outer annular surface, a first side surface and a second side surface. The first side surface and the second side surface are oppositely arranged on two sides of the outer annular surface. The two sides of the outer annular surface are oppositely provided with a first wheel flange and a second wheel flange. A tire mounting seat is formed between the first wheel flange and the second wheel flange, and an anti-detachment collar is provided on the tire mounting seat. The anti-detachment collar is an annular protruding ring arranged along the outer annular surface. The anti-detachment collar is concentric with the outer annular surface. A surface of the anti-detachment collar is provided with a toothed structure which includes multiple protruding teeth and gullets. The protruding teeth and the gullets are alternately arranged.

A rim for a bicycle wheel includes a radially outer tire-engaging portion, a first sidewall, and a second sidewall spaced apart from the first sidewall. The first and second sidewalls may extend radially inward of the radially outer tire-engaging portion. The rim includes a radially inner portion having at least one asymmetric protrusion.

Provided is a vehicle wheel. The vehicle wheel disclosed herein includes a disc member to which an axle is connected, and a rim portion connected to the disc member and on which a tire is mounted. The rim portion includes a first tire mounting portion connected to the disc member and including a first bead seat coming into contact with an outer bead of the tire, a second tire mounting portion located including a second bead seat coming into contact with an inner bead of the tire, and a well portion including an outer well portion extending from the first tire mounting portion, and an inner well portion configured to connect the outer well portion to the second tire mounting portion, and wherein a thickness is formed to be thinner in an order of the outer well portion, the second bead seat, and the inner well portion.

A method is provided for producing a bicycle wheel made of a fiber composite material, including laminating, in one piece and in one step, a rim, a plurality of spokes each including a first spoke section and a second spoke section, and a center having a first center disc and a second center disc, wherein all fibers for the rim, the spokes, and the center are laid in mold parts in the one step; curing the laminated rim, spokes, and center to form the bicycle wheel; and removing the formed bicycle wheel in said one piece from the mold, wherein the spokes are laminated and cured such that the first spoke section and the second spoke section have a substantially straight shape.

A vehicle wheel includes an annular rim defining an axis and inboard and outboard sides. The rim includes an outboard bead seat, an inboard bead seat, an outboard well flank connected to the outboard bead seat and extending radially inwardly and towards the inboard side of the rim, and an inboard well flank connected to the inboard bead seat and extending radially inwardly and towards the outboard side of the rim. The rim further includes a well portion defined between the outboard and inboard well flanks, wherein the well portion is formed by a plurality of curved and straight portions linked together. The well portion has at least three transition portions having varying thickness cross-sectional profiles. A wheel disc is secured to the rim. The wheel disc includes a hub located centrally within the wheel disc and has a plurality of bolt holes formed therein.

Herein is disclosed a rim for a wheel. the rim comprising a barrel having first and second flanges extending radially outward from opposing edges of the barrel. and the barrel comprising a first bead seat and a second bead seat arranged axially inwardly. respectively. of the first and second flanges, wherein the barrel, and first and second flanges. comprise layers of structural fibres bound in a polymer matrix, wherein a pre-form insert is disposed between layers of the structural fibres. wherein the insert comprises a material which acts to absorb and/or deflect and/or dissipate energy from a load or impact applied axially and/or radially to a rim and/or acts to increase the hoop stiffness of the wheel and wherein the insert has, when viewed in cross-section (with the axis of the rim being parallel to the plane of the cross-section). two elongate portions. with a first elongate portion of the insert extending into one of the first or second flanges. and a second elongate portion of the insert extending underneath the first or second bead seat, respectively, such that first and second portions together form an approximate L shape in cross-section.

In a vehicle wheel, communication holes of first Helmholtz resonators (auxiliary air chamber members) having a resonant frequency lower by a first prescribed frequency fa than the resonant frequency of air column resonance sounds of a tire, and communication holes of second Helmholtz resonators having a resonant frequency higher by a second prescribed frequency fb than the resonant frequency of air column resonance sounds of the tire, are arranged facing each other across the wheel rotational center, the second prescribed frequency fb being set greater than the first prescribed frequency fa.

A bicycle includes a frame, a seat, and at least one wheel rim. The rim includes a main body, and a first flange and a second flange extending from the main body for supporting a tire. A ratio of a first flange width to a flange spacing is at least 0.14. A ratio of an inner corner radius to the first flange width is preferably at most 0.5. A ratio of the first flange width to a first flange height is at least 0.75. The main body includes a cavity having a radial projection that is spaced from a radial projection of the first flange projection by a gap that is at least 10% of the first flange width. The main body further includes a nose section and a first sidewall connecting the nose section to the first flange, wherein the first sidewall includes a first concave outer surface.

A wheel assembly includes a rim having a primary tire bead retention ridge; a plurality of secondary bead retention members; and a plurality of sealing members. The plurality of secondary bead retention members are removably coupleable to receptacles of the rim such that a portion of each secondary bead retention member extends into a pressurized portion of the wheel, is positioned behind a tire bead seat, and extends radially beyond the primary tire bead retention ridge.