Patent ID: 7201196

Claim:
A run-flat tire comprising a carcass comprising at least one carcass ply of cords comprising a main portion extending between a pair of bead portions through a tread portion and sidewall portions and a pair of turnup portions each turned up around a bead core in the bead portion from the axially inside to the outside of the tire, a belt being provided outside of the carcass in the tread portion, a sidewall reinforcing rubber layer disposed axially inside the main portion of the carcass ply in each sidewall portion and tapering towards its radially inner end and outer end from a central portion to have a crescent shape in meridian section of the tire, and a reinforcing cord layer disposed between each sidewall reinforcing rubber layer and the main portion of the carcass ply in contact with both the main portion and the outer surface of the sidewall reinforcing rubber layer, the reinforcing cord layer comprising at least two reinforcing plies each with cords inclined with respect to a radial direction of the tire and overlapped in directions in which the cords intersect with each other, wherein each turnup portion extends to the tread portion and terminates between the main portion and the belt, and each reinforcing cord layer has a radially outer end located between a radially outer end of the sidewall reinforcing rubber layer and a radially outer end of the turnup portion.