| abstract |
The invention relates to a tire including a crown reinforcement consisting of at least two working crown plies (41, 43) of reinforcement elements, and at least one ply (42) of circumferential reinforcement elements, a ply C being arranged between the ends of the working crown plies. According to the invention, the tread has a plurality of transverse indentations (9) defined by facing walls of material, the depth, measured on a new tire, of at least one transverse indentation being no less than 40% of the thickness of the tread and the width measured at the bottom of said at least one transverse indentation being strictly greater than 4 mm, and the distance d between the end of the axially narrowest working ply and the working ply separated from the axially narrowest working ply by the ply C of rubber mixture is such that l.lo < d < 2.2o, 0 being the diameter of the reinforcement elements of said at least one ply of circumferential reinforcement elements; in a meridian plane, the thickness of the ply C of rubber mixture being substantially constant across the axial width between the axially inner end of the ply C and the end of the axially narrowest working ply. FIGURE 2 |