Abstract:
A spoke for a bicycle wheel has an elongated metallic material body that extends along a longitudinal axis X-X and has a first end portion for the attachment to a hub of a bicycle wheel, a second end portion for the attachment to a rim of a bicycle wheel and an intermediate portion having a portion which is flattened in a transversal direction Z perpendicular to the longitudinal axis X-X and extending along the longitudinal axis X-X up to the first end portion. The first end portion of the spoke is also flattened in the transversal direction Z and is gradually joined to the flattened portion of the intermediate portion along the longitudinal axis X-X.
Abstract:
An anti-friction bearing interposable at the crossing-over point between two spokes of a bicycle wheel comprises a body having a through hole, with a completely closed continuous part, and giving out onto two opposite ends of the body to receive through it one of the two spokes. The body further includes a portion of external surface in contact with the other spoke.
Abstract:
A rim for a bicycle wheel with tubeless tire comprises a radially inner peripheral wall, a radially outer peripheral wall, two circumferential side walls which connect the inner and outer peripheral walls and form two ribs which extend beyond the outer peripheral wall, for anchorage of a tubeless tire. The inner and outer peripheral walls have two holes facing one another, within which an intermediate tubular element is mounted, connected to which is a valve body of a standard type normally used for bicycle wheels provided with inner tubes.
Abstract:
A spoked bicycle wheel includes a rim, a hub having first and second axially spaced apart anchoring portions and a plurality of spokes connected between the rim and the anchoring portions. A first set of spokes is anchored to the first anchoring portions and a second set of spokes is anchored to the second anchoring portions. The spokes of the first set are greater in number than the spokes of the second set.
Abstract:
A bicycle wheel (10) comprising a rim (12), a hub (14), and a plurality of spokes (20, 22) having their outer ends fixed to the rim (12) and their inner ends fixed to the hub (14), the hub (14) having a left-hand anchoring portion (16) and a right-hand anchoring portion (18) for anchorage, respectively, of a set of left-hand spokes (20) and a set of right-hand spokes (22). The aforementioned spokes (20, 22) are grouped together in an even number of sets of three (24a, 24b) set at equal distances apart and comprising, alternately, two right-hand spokes (22) and one left-hand spoke (20), and two left-hand spokes (20) and one right-hand spoke (22).
Abstract:
A bicycle rim made of composite material has structural fibers incorporated in a polymeric material. The rim has at least one circumferential reinforcement element based on unidirectional structural fibers extending at a respective intersection of walls of the rim, the direction of the structural fiber being circumferential.
Abstract:
A rim for a bicycle has a lower bridge with infra-spoke zones of lower thickness than the thickness of the spoke attachment zones. The increase in thickness from the infra-spoke zones to the spoke attachment zones and the reduction in thickness between the spoke attachment zones and the infra-spoke zones have a sharp corner.
Abstract:
A spoked bicycle wheel is presented where the masses of a set of spoke connections for connection of a hub and a rim as a whole are imbalanced with respect to the rotational axis. In such a way the dynamic imbalance of the wheel due to localized mass increases at the valve and at a possible joint is reduced or eliminated.
Abstract:
A spoked wheel for a bicycle is described herein, comprising a hub, a rim and a plurality of spokes that connect the hub to the rim. The spokes comprise a first set of spokes arranged on one side of the wheel, made up of spokes connected to a first portion of the hub, and a second set of spokes arranged on the other side of the wheel, made up of spokes connected to a second portion of the hub. The second hub portion is set at an axial distance from said first portion. The spokes of the first set are grouped together into pairs set at angular distances apart from one another with the spokes of each pair that have their outer ends set close to one another.