Tire having a carcass ply turn-up portion with a concave segment

A tire having a section height, a maximum section width, an upper section above the maximum section width, and a lower section below the maximum section width, the tire comprising:

• a circumferential tread;
• a pair of sidewalls;
• a pair of bead regions, each having a bead core;
• at least one carcass ply extending circumferentially about the tire from one bead region to the other, wherein the at least one carcass ply is wound outwardly about at least one of the bead cores and extends toward the tread to form a turn-up portion that terminates at a turn-up end, wherein the turn-up portion has a height that is less than about 50% of the section height of the tire, wherein the turn-up portion includes a concave segment that extends from the bead region to the turn-up end;
• and
• at least one reinforcement ply extending circumferentially about the tire and provided between the turn-up portion and one of the sidewalls, wherein a lower edge of the at least one reinforcement ply terminates in the lower section of the tire and an upper edge of the at least one reinforcement ply terminates in the upper section of the tire;
• wherein the at least one reinforcement ply includes a fold-up portion and a crease.