Tyre comprising two beads (20) comprising a bead wire (70) and a carcass (60) anchored around the two bead wires by turning back, a squat filler (110) of small height, a sidewall stiffening reinforcement (140) which is metallic, an outer strip (170) of soft rubber compound, placed axially on the outside of the carcass (60) and of the filler (110), and a protective layer (160) of rubber compound, wherein the assembly formed by the stiffening reinforcement and the outer strip has a thickness EB(R) and the protective layer (160) has a thickness EE(R), R being the distance with respect to the radially innermost point (71) of the bead wire (70), and wherein the thicknesses EB(R) and EE(R) satisfy a set of geometric conditions.