RUN-FLAT TIRE

A run-flat tire (10) includes: a pair of bead portions (12); side wall portions 14 that are respectively connected to the bead portions (12); a carcass (16) that spans between the pair of bead portions (12) and that includes a main body portion (16A) positioned between bead cores (24), and a folded-back portion (16B) folded back from an inner side toward an outer side about each bead core (24); a tread (18) that is provided at the tire radial direction outer side of the main body portion (16A); a side reinforcing layer (20) that is disposed at a tire width direction inner side of the main body portion (16A) and that is configured so as to respectively gradually decrease in thickness toward a crown portion (16C) of the carcass (16) and toward the bead portion (12); and side rubber (22) (a side layer) that is disposed in the side wall portion (14) at the tire outer side of the main body portion (16A), that configures a tire outer face, and that satisfies Gs/Gt6 ‰¤ 0.35, wherein Gs is a thickness of the side rubber (22) and Gt6 is an overall thickness of the side wall portion (14) at a position of a maximum width CW of the main body portion (16A) in the tire width direction.