TYRE WITH A REDUCED-WEIGHT BEAD REGION

The invention relates to a tyre with a radial carcass ply, consisting of a single layer (7) of reinforcement elements, which is turned up around a bead wire (4) such as to be anchored in each of the beads. According to the invention, the turn-up of the carcass ply layer (7) and the main part of the carcass ply layer are the only layers of reinforcement elements with elongation at break lower than 6% present in the sidewall, said turn-up and the main part being coupled and then uncoupled, and any point of the profile of the outer surface S of the tyre between points F and E is at a distance of less than 2.5 mm from the spline P, at least 95% of the points of the spline P being axially inside the points of a spline W.