TYRE FOR BICYCLE WHEEL

Pneumatic (2) for a cycle comprising an envelope (21) which has two lateral edges and which defines an interior volume having substantially the shape of an open torus, the opening of which is delimited by the two lateral edges, said pneumatic also comprising a bead placed in proximity to each lateral edge, at least one of the two beads (6) presenting a shoulder (65) projecting outward or inward, from the portion of the envelope which is adjacent to it. Said shoulder (65) comprises on its outer surface a first bearing surface (653) and a rim (654), said first bearing surface being placed between said rim and said envelope and said bearing surface being set back with respect to said rim. The modulus of the bead or the equivalent modulus of the different components which constitute said bead is between 50 MPa and 2000 MPa.