REINFORCEMENT FOR CROWN OF PNEUMATIC TIRE, COMPOSED OF TWO CROSSED BELT LAYERS AND ONE LAYER OF CIRCUMFERENTIAL REINFORCEMENT ELEMENTS

The invention relates to a pneumatic tire comprising a crown reinforcement composed of at least two working crown layers (4), reinforcement elements (41, 42) and at least one layer (43) of circumferential reinforcement elements. According to the invention, the two working crown layers (41, 42) and the at least one layer (43) of circumferential reinforcement elements extend only over at least 40% of the tread width to form the crown reinforcement, the absolute value of the difference between the absolute values of the angles α2 and α1 being of more than 12°, α2 being greater than α1 in absolute value, the average angle α satisfying the equation 14+131*exp(-L/100) < α < 28+110*exp(-L/100), and the ratio of utilisation of the rupture potential F2/FR2 of the radially outermost working layer (42) being of less than 1/6.