Bicycle rim provided for a tubeless assembly and bicycle wheel

A cycle wheel comprising a rim connected to a central hub by a plurality of spokes, said rim having an annular channel along a periphery of said rim so as to receive a tire, the channel comprising an upper bridge devoid of openings with the exception of a valve opening, and two lateral flanges, said flanges having gripping elements that grip the tire, said upper bridge of the rim having a recessed central well, said well being defined by a base and two lateral walls, said well having a width to facilitate engagement and retention of a pair of beads of a tire within said well, whereby the pair of beads touch each other at least before a primary tire inflation phase to facilitate inflation of the tire, said annular channel further comprising seats for the tire beads at least before a subsequent tire inflation phase on opposed lateral sides of said well between said well and respective ones of said flanges, said bead seats extending obliquely from an edge of said well towards respective ones of said flanges, and said bead seats having, adjacent said well, a maximum diameter zone, said maximum diameter zone being greater than a diameter of said bead seats adjacent said flanges.

A cycle wheel equipped with a tubeless tire and comprising a rim connected to a central hub by a plurality of spokes, said rim having an annular channel along a periphery of said rim so as to receive said tire, the channel comprising an upper bridge devoid of openings with the exception of a valve opening, and two lateral flanges, said flanges having gripping elements that grip the tire, said upper bridge of the rim having a recessed central well, said well being defined by a base and two lateral walls, said tire having a pair of beads, said well having a width to facilitate engagement and retention of said pair of beads of said tire within said well, whereby said pair of beads touch each other at least before a primary tire inflation phase to facilitate inflation of said tire, said annular channel further comprising seats for the tire beads during a subsequent tire inflation phase on opposed lateral sides of said well, between said well and respective ones of said flanges, said bead seats extending obliquely from an edge of said well towards respective ones of said flanges, and said bead seats having, adjacent said well, a maximum diameter zone, said maximum diameter zone being greater than a diameter of said bead seats adjacent said flanges.

A rim of a wheel adapted to receive a tubeless tire, said rim comprising:

• a lower bridge, an upper bridge, lateral sides extending between said lower bridge and said upper bridge, said lateral sides extending radially outwardly beyond said upper bridge to form lateral flanges, the tire to be retained between said lateral flanges;
• said upper bridge having a rim well recessed in a central portion of said upper bridge between said lateral flanges, said rim well comprising a base and a pair of lateral walls extending from said base, said well having a width to facilitate a pair of tire beads touching each other within said well, at least before a primary tire inflation phase, to facilitate inflation of the tire;
• said upper bridge further comprising laterally opposed seats for beads of the tire and laterally opposed ridges, each of said ridges being positioned between a respective one of said bead seats and a respective one of said lateral walls of said rim well, said ridges comprising a zone of said upper bridge having a greater diameter than a diameter of said bead seats.

A rim of a wheel adapted to receive a tubeless tire, said rim comprising:

• a lower bridge, an upper bridge, lateral sides extending between said lower bridge and said upper bridge, said lateral sides extending radially outwardly beyond said upper bridge in the form of lateral flanges, said upper bridge further including a central portion, the tire to be retained between said lateral flanges in a final mounted position;
• said upper bridge comprising means for engaging and retaining a pair of beads of a tire within a central portion of said upper bridge before inflation of the tire and before the tire is retained in said final mounted position.

A rim for a bicycle wheel, adapted for a tubeless assembly of a tire, said rim comprising an annular channel at a periphery of said rim, said annular channel having a structure adapted to receive the tire, said annular channel comprising an upper bridge and two lateral flanges , said upper bridge having a recessed central well, said well comprising a base and two lateral walls extending around an entire circumference of said well, said well having a width to facilitate engagement and retention of a pair of tire beads within said well, whereby the pair of tire beads touch each other along said entire circumference of said well at least before a primary tire inflation phase, said annular channel further comprising seats for the tire beads during a subsequent tire inflation phase on opposed lateral sides of said well between said well and respective ones of said flanges, said bead seats extending obliquely from an edge of said well towards respective ones of said flanges, and said bead seats having, adjacent said well, a maximum diameter zone, said maximum diameter zone being greater than a diameter of said bead seats adjacent said flanges.