| abstract |
The invention relates to a tire including a crown reinforcement consisting of at least two working crown layers (41, 43) of reinforcing elements, and at least one layer (42) of circumferential reinforcement elements, a layer C being arranged between the ends of the working crown layers. According to the invention, the tread has at least one longitudinal indentation (8), the depth, measured on a new tire, of said at least one longitudinal indentation not being less than 40% of the thickness of the tread, the ratio of the width measured at the bottom of said longitudinal indentation to the width measured at the surface of the tread of said at least one longitudinal indentation being strictly greater than 2, the modulus of elasticity under stress at 10% elongation of the layer C being greater than 9 MPa, and the maximum value of tan(8), denoted tan(8) max, of the layer C being less than 0.100. FIGURE 2 |