Abstract: A rim structure for a bicycle wheel that includes, at its periphery, an annular channel designed to receive a tire, such channel being demarcated by an upper bridge devoid of openings with the exception of the valve opening, and two lateral flanges, such flanges having end butts for gripping the tire. The upper bridge has a narrow and recessed central rim well demarcated by a base and two lateral walls, the rim well being bordered by two bead seats that are oblique from the rim well towards the flanges. The invention is also related to a wheel having such a rim and a wheel equipped with a tire mounted without an air tube and having such a rim.

Abstract: A rim for a bicycle wheel that includes, at its periphery, an annular channel designed to receive a tire, such channel being demarcated by an upper bridge devoid of openings with the exception of the valve opening, and two lateral flanges, such flanges having hooks for gripping the tire. The upper bridge has a narrow and recessed central groove demarcated by a groove base and two lateral walls, the rim well being bordered by two shoulders that are oblique from the well towards the flanges. The invention is also related to a wheel having such a rim and a wheel equipped with a tire mounted without an air tube and having such a rim.

Abstract: An inflation valve provided to inflate a cycle tire assembled without an air tube on a rim. The valve has a body crossed by a conduit, with a first part being designed to cross the casing of the rim, and a second part adapted to connect an inflating means. The valve has an injection nozzle located in the extension of the first part, a sealing joint located around the injection nozzle, and in that the first part or nozzle has an assembly device designed to cooperate with the complementary assembly device of the rim.