Abstract: Tire with radial carcass reinforcement having a tread of thickness E, this tread having a tread surface to come into contact with a roadway and comprising at least one cut opening onto the tread surface to form edge corners, this cut extending into the tread over a total depth H at most equal to the thickness E of the tread, this cut being, between the tread surface and a depth H1 at most equal to the total depth H, in the form of a sipe having a width D suitable for being able to close up at least in part under normal running conditions of the tire. There is also formed, in the vicinity, i.e. at a minimum distance from the said edge corner that is at most equal to five times the width D of the cut, of at least one edge corner of this cut and on the tread surface, at least one cavity having a depth h that is small in comparison with the depth of the cut, i.e.

Abstract: Tire tread (1) comprising a plurality of blocks (6), each block (6) comprising a leading face (61), a trailing face (62) and a contact face (60), the leading face (61) making a mean angle ?A greater than 0 degrees, the trailing edge (62) making a mean angle ?F greater than 0 degrees, the angle ?A of the leading face (61) being greater than the angle ?F of the trailing face, each block (6) comprises an incision (7) extending into the thickness of the block, this incision (7) being delimited by opposing faces provided with blocking means (71) for blocking the relative movements of one of the said faces with respect to the other face in at least one direction, this incision (7) dividing the contact face (60) of the block into two parts with substantially equal surface areas, this tread being characterized in that the incision (7) is inclined by a mean angle ?, measured with respect to the perpendicular to the contact face (60) in the same direction as the angle ?A of the leading face and in that the volume of ma