Tire of the maximum axial width, sw, and an axial width rw at the level of the beads, having a crown reinforcement of width tw and a radial carcass reinforcement, in which, when the tire is mounted on its mounting rim and inflated to its service pressure, and in equilibrium, the following conditions are met: tw / sw = 75%, t. / rw = 85%, x / sh = 50%, where x is the radial height at which the tire has its maximum axial width and sh denotes the radial height of the tire, y / sh = 80%, in which y is the radial height of the carcass reinforcement at the end of the crown reinforcement, and z / sh = 90%, in which z denotes the radial height of the carcass reinforcement, in which the absolute value of the angle alpha between the tangent to the carcass reinforcement in the points of the carcass reinforcement having the same axial positions that the axial ends of the crown reinforcement and the axial direction is less than or equal to 22°, and in which each of the flanks includes at least two crossed reinforcement armatures.
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