A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. Another embodiment of the invention is directed to a bicycle wheel including the embodied rim, a plurality a spokes engaged at respective ends thereof with the rim and a hub engaged with the plurality of spoke members at opposite ends thereof. Another embodiment of the invention is directed to a bicycle wheel assembly comprising the embodied wheel and a tube and/or tire mounted on the rim.

Bicycle rims that allow tires to be more easily mounted in a tubeless configuration are disclosed. More specifically, a bicycle rim may control the two beads of the tire with separate bead channels for each bead and a center bridge extending between the two bead channels.

A bicycle rim has rim a pair of rim flanges that defines a tire channel. A rim strip extends across the tire channel. The rim strip includes a pair of flange bumpers configured to cover the rim flanges. The flange bumpers each define a flange channel in which one of the rim flanges is received. A pair of safety humps define corresponding tire seating sections where a tire is seated when inflated. The rim strip further includes a drop seal that seals with the beads of the tire to facilitate seating of the tire during inflation.

Bicycle rims that allow tires to be more easily mounted in a tubeless configuration are disclosed. More specifically, a bicycle rim may control the two beads of the tire with separate bead channels for each bead and a center bridge extending between the two bead channels.

A wheel construction includes a circular wheel rim which receives a tire, the rim having axially inner and outer portions each having a flange providing a seat for a bead. The wheel construction including a mid-portion, and side parts connecting the mid and outer portions the mid-portion including a circumferential well where the radius of the wheel rim is a minimum, at least one of the side parts including plurality of curved regions the plurality of curved regions each being immediately adjacent to each other whereby the side part continuously undulates. Each curved region provides at least a further two circumferential well. For each adjacent two curved regions, there is an effective angle of between 25 and 45 between a plane normal to the axis of the wheel and a line struck tangentially at a point of inflection between the two curved regions.

A bicycle wheel rim having a circular base portion including a proximal surface and a distal surface, and a pair of integral sidewalls extending generally radially outward from an intersection region of the proximal surface and the distal surface. The distal surface of the rim has a central hump, a trough contiguous with the central hump extending axially outward from the hump, and a flat shelf immediately adjacent, contiguous with, and extending axially outward from the trough. Another embodiment of the invention is directed to a bicycle wheel including the embodied rim, a plurality a spokes engaged at respective ends thereof with the rim and a hub engaged with the plurality of spoke members at opposite ends thereof. Another embodiment of the invention is directed to a bicycle wheel assembly comprising the embodied wheel and a tube and/or tire mounted on the rim.

A vehicle wheel (1) allows a communication hole (18a) for a first Helmholtz resonator (auxiliary air chamber members (10a, 10d)) having a lower resonance frequency than that of an air column resonance sound of a tire and a communication hole (18a) for a second Helmholtz resonator (auxiliary air chamber members (10b, 10c)) having a higher resonance frequency than that of the air column resonance sound of the tire to be disposed at positions facing each other across a wheel rotation center (Ax).

Herein is described a non-metallic 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 a primary structural component extends at least through the first flange and the barrel, the primary structural component being capable of bearing the majority of the radial and/or lateral load that, in use, would be borne by the rim a protective insert is disposed between an outer face of the first flange and the primary structural component and/or at least a portion of the first bead seat is spaced apart from the primary structural component and the primary structural component, bead seat and, if present, the protective insert are bound by a polymer matrix.

A bicycle wheel rim design with high safety margin and optimized strength-to-weight is described. The rim provides a tire bead supporting platform which defines a circumferential bead seat with minimum bead seat diameter equal to the standard tire bead diameter defined for a particular size of tire. Each tire bead seat defined along the rim circumference is comprised by a pair of circumferential ridges. The circumferential ridges comprise the external sidewalls of the rim and do not include tire bead hook features, and are of optimized sidewall thickness to add load strength and lateral stiffness, and resist crushing from impact. The interior ridges are increased diameter towards the medial plane of the rim to a value greater than the specified tire bead diameter. Given this geometry, the left lateral and right lateral of each tire bead is safely constrained within the defined bead seats under a wide variety of uses.

Bicycle rims that allow tires to be more easily mounted in a tubeless configuration are disclosed. More specifically, a bicycle rim may control the two beads of the tire with separate bead channels for each bead and a center bridge extending between the two bead channels.