Tire comprising a corrugated crown layer and a sidewall stiffening insert

A tire not suitable for running flat comprising a crown block, two beads, two sidewalls connecting each bead to the crown block,

• the crown block comprising a tread and a crown reinforcement arranged radially to an inside of the tread,
• the crown reinforcement comprising a central part with an axial width equal to 80% of an axial width of the crown reinforcement and axially centered on a median plane of the tire,
• the crown reinforcement comprising at least one corrugated crown layer comprising reinforcing elements embedded in a polymeric matrix, the at least one corrugated crown layer comprising, in the central part of the crown reinforcement, at least one corrugation, the or each corrugation of the at least one corrugated crown layer comprising a top of the at least one corrugated crown layer and first and second bottoms of the at least one corrugated crown layer adjacent to the top arranged in such a way that:
• the top is arranged axially between the first and second bottoms, and
• the top is arranged radially to an outside of each first and second bottom,
• wherein the tire comprises a sidewall insert arranged axially between an outer surface of at least one of the sidewalls and an inner surface of the sidewall, and
• wherein the sidewall insert comprises at least one rigid elastomeric composition, the at least one rigid elastomeric composition of the sidewall insert having a modulus at 10% extension greater than or equal to 6 MPa, and a maximum thickness of the at least one rigid elastomeric composition being less than or equal to 5.0 mm.