Patent ID: 7082977

Claim:
A pneumatic tire having two or more carcass layers for reinforcing between a pair of annular beads, and a reinforcing layer having a cord arranged on an outer peripheral surface of said carcass layers below a tread surface in a circumferential direction of the tire, and a flattening of said pneumatic tire being 70% or less, wherein cords constituting said carcass layers are arranged substantially in a radial direction in a region of the tire from said bead to a position near a tire maximum width, and from that position to a grounding end, an angle with respect to a circumferential direction of the tire is gradually changed, and the angle is 20 to 60° with respect to the circumferential direction of the tire in the vicinity of said grounding end, and the angle is 20 to 50° at the tread surface, said carcass layers are laminated at angles substantially symmetrical with respect to a tire equator line, and a tensile modulus in the circumferential direction per width of said reinforcing layer is 1.2 times or more of said carcass layers.