Tyre comprising: - a tread comprising: - at least one rib (68, 70), referred to as deeply cut rib, comprising at least one transverse cut (77, 78) having a depth Ht such that Ht/Hs ≥ 50%, where Hs is the tread pattern height, - at least one rib (62, 64, 66), referred to as non-cut or slightly cut rib, which lacks transverse cuts or comprises transverse cuts (71, 72, 73), each satisfying, for at least 50%, preferably for at least 75% and more preferably for 100% of the number of transverse cuts (71, 72, 73) of the or each slightly cut rib (62, 64, 66), at least one of the following conditions: - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a width strictly less than 1.6 mm, - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a depth H such that H/Hs < 50%, - an airtight internal layer, - a layer of a self-sealing product extending circumferentially radially on the inside of part of the airtight internal layer, characterized in that, over at least 50% of the circumferential length of the layer of self-sealing product, the layer of self-sealing product comprises: - an axial portion (90", 92") extending axially in line with the deeply cut rib (68, 70) and having an average thickness Ec > 0 of self-sealing product, - an axial portion (100', 102', 104') extending axially in line with the non-cut or slightly cut rib (62, 64, 66) and having an average thickness Eb ≥ 0 of self-sealing product such that Eb < Ec. - a tread comprising: - at least one rib (68, 70), referred to as deeply cut rib, comprising at least one transverse cut (77, 78) having a depth Ht such that Ht/Hs ≥ 50%, where Hs is the tread pattern height, - at least one rib (62, 64, 66), referred to as non-cut or slightly cut rib, which lacks transverse cuts or comprises transverse cuts (71, 72, 73), each satisfying, for at least 50%, preferably for at least 75% and more preferably for 100% of the number of transverse cuts (71, 72, 73) of the or each slightly cut rib (62, 64, 66), at least one of the following conditions: - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a width strictly less than 1.6 mm, - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a depth H such that H/Hs < 50%, - at least one rib (68, 70), referred to as deeply cut rib, comprising at least one transverse cut (77, 78) having a depth Ht such that Ht/Hs ≥ 50%, where Hs is the tread pattern height, - at least one rib (62, 64, 66), referred to as non-cut or slightly cut rib, which lacks transverse cuts or comprises transverse cuts (71, 72, 73), each satisfying, for at least 50%, preferably for at least 75% and more preferably for 100% of the number of transverse cuts (71, 72, 73) of the or each slightly cut rib (62, 64, 66), at least one of the following conditions: - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a width strictly less than 1.6 mm, - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a depth H such that H/Hs < 50%, - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a width strictly less than 1.6 mm, - the transverse cut (71, 72, 73) of the slightly cut rib (62, 64, 66) has a depth H such that H/Hs < 50%, - an airtight internal layer, - a layer of a self-sealing product extending circumferentially radially on the inside of part of the airtight internal layer, - an axial portion (90", 92") extending axially in line with the deeply cut rib (68, 70) and having an average thickness Ec > 0 of self-sealing product, - an axial portion (100', 102', 104') extending axially in line with the non-cut or slightly cut rib (62, 64, 66) and having an average thickness Eb ≥ 0 of self-sealing product such that Eb < Ec.