Tire comprising an optimized layer of self-sealing product

A tire comprising a tread comprising:

• P deeply cut ribs comprising at least one transverse cut having a depth Ht such that Ht/Hs≥50%, where Hs is a tread pattern height and P is a total number of deeply cut ribs present on the tire, wherein a width of the transverse cuts of the P deeply cut ribs is greater than or equal to 1.0 mm;
• Q=2 or Q=3 non-cut or slightly cut ribs, Q being a total number of non-cut or slightly cut ribs present on the tire, the non-cut or slightly cut ribs lacking transverse cuts or comprising transverse cuts, each non-cut or slightly cut rib satisfying, for at least 50% of a number of transverse cuts of the or each non-cut or slightly cut rib, the following conditions:
• the transverse cuts of each non-cut or slightly cut rib have a width strictly less than 1.0 mm, and
• the transverse cuts of each non-cut or slightly cut rib have a depth H such that H/Hs<50%;
• an airtight internal layer;
• and
• a layer of a self-sealing product extending circumferentially radially on an inside of part of the airtight internal layer,
• wherein, over at least 50% of a circumferential length of the layer of self-sealing product, the layer of self-sealing product comprises:
• P>1 axial portions extending axially in line with one of the P deeply cut ribs and each having an average thickness Eck>0 of self-sealing product,
• one or more thick axial portions, at least partially coinciding with all or part of the P>1 axial portions, and
• Q=2 or Q=3 axial portions extending axially in line with one of the Q non-cut or slightly cut ribs and each having an average thickness Ebj≥0 of self-sealing product, with j ranging from 1 to Q, and being such that, for each value of k ranging from 1 to P, at least 50% of the values of j ranging from 1 to Q are such that Ebj<Eck,
• wherein each of the one or more thick axial portions is axially delimited by two adjacent inflection points on a radially inner surface curve of the layer of self-sealing product, each inflection point being (1) a point at which, in a meridian section plane, a direction of curvature of the radially inner surface curve of the layer of self-sealing product changes or (2) a termination point of the radially inner surface curve of the layer of self-sealing product in contact with the airtight internal layer, and
• wherein a thickness of each of the one or more thick axial portions increases in a direction axially toward an inside of the each of the one or more thick axial portions from each of the adjacent inflection points.