Tread having a tread surface to come into contact with the roadway, this tread having a width W and a total thickness E, this total thickness E corresponding to the total thickness of material measured on the equatorial plane between the tread surface when the new tyre is in the initial state and the radially outermost part of the crown reinforcement, this tread having a maximum thickness PMU of material to be worn away during running, this maximum thickness PMU being less than the total thickness E, - this tread comprising at least two grooves of circumferential overall orientation (1, 2, 3, 4) delimiting at least one intermediate row (11, 12, 13) of suffix (i) and two edge rows (14, 15) of suffix (e), these edge rows (14, 15) axially delimiting the tread in the width W thereof, - this tread further comprising a plurality of cuts of transverse overall orientation which are formed on each of the intermediate and edge rows, all of the cuts of circumferential overall orientation and cuts of transverse overall orientation representing, in the new state, a void of total volume Vco open onto the tread surface, this volume Vco being at most equal to 16% of the total volume Vt of the tread, this total volume Vt being equal to the sum of the volumes of material to be worn away and of all the voids, - this tread further comprising channels or cavities (42, 72,72', 92, 123, 153) under the tread surface in the new state, these channels forming a hidden void of total volume Vcc and being intended to form new grooves after the tread has partially worn away, this hidden void having, in the initial state, a total volume Vcc at least equal to 30% of the total void volume Vco opening onto the tread surface in the new state, - the intermediate rows (11, 12, 13) of suffix (i) and the edge rows (14, 15) of suffix (e) are each provided with a plurality of cuts of transverse or oblique orientation distributed over each row evenly or near-evenly with a mean pitch of respectively Pi in the case of the intermediate rows and Pe in the case of the edge rows, these cuts having mean depths, Di and De respectively, which are at least equal to 20% of the thickness PMU and at most equal to this same thickness PMU, this tread being characterized in that: - on the edge rows (14, 15), the mean pitch Pe of the cuts is determined so that the relationship 1.30 < Pe/De < 3.00 is satisfied, and - in that, on the intermediate rows (11, 12, 13), the mean pitch Pi of the cuts satisfies the relationship 1.00 < Pi/Di < 1.70, and - in that the mean pitch Pe of the cuts on the edge rows is greater than the pitch Pi on the intermediate rows. - this tread comprising at least two grooves of circumferential overall orientation (1, 2, 3, 4) delimiting at least one intermediate row (11, 12, 13) of suffix (i) and two edge rows (14, 15) of suffix (e), these edge rows (14, 15) axially delimiting the tread in the width W thereof, - this tread further comprising a plurality of cuts of transverse overall orientation which are formed on each of the intermediate and edge rows, all of the cuts of circumferential overall orientation and cuts of transverse overall orientation representing, in the new state, a void of total volume Vco open onto the tread surface, this volume Vco being at most equal to 16% of the total volume Vt of the tread, this total volume Vt being equal to the sum of the volumes of material to be worn away and of all the voids, - this tread further comprising channels or cavities (42, 72,72', 92, 123, 153) under the tread surface in the new state, these channels forming a hidden void of total volume Vcc and being intended to form new grooves after the tread has partially worn away, this hidden void having, in the initial state, a total volume Vcc at least equal to 30% of the total void volume Vco opening onto the tread surface in the new state, - the intermediate rows (11, 12, 13) of suffix (i) and the edge rows (14, 15) of suffix (e) are each provided with a plurality of cuts of transverse or oblique orientation distributed over each row evenly or near-evenly with a mean pitch of respectively Pi in the case of the intermediate rows and Pe in the case of the edge rows, these cuts having mean depths, Di and De respectively, which are at least equal to 20% of the thickness PMU and at most equal to this same thickness PMU, this tread being characterized in that: - on the edge rows (14, 15), the mean pitch Pe of the cuts is determined so that the relationship 1.30 < Pe/De < 3.00 is satisfied, and - in that, on the intermediate rows (11, 12, 13), the mean pitch Pi of the cuts satisfies the relationship 1.00 < Pi/Di < 1.70, and - in that the mean pitch Pe of the cuts on the edge rows is greater than the pitch Pi on the intermediate rows.