Patent ID: 7156138

Claim:
A pneumatic tire comprising: a carcass extending between bead portions through a tread portion and sidewall portions; and a belt disposed radially outside the carcass in the tread portion, said belt comprising at least one belt ply made of parallel cords embedded in a composite topping rubber layer, the cords of the belt ply being inclined at an angle of from 10 to 35 degrees with respect to the tire equator, said composite topping rubber layer formed at least two kinds of topping rubbers including a first topping portion made of a first topping rubber and a second topping portion made of a second topping rubber having greater complex elastic modulus than that of the first topping rubber, each of the first topping portion and the second topping portion being formed substantially into a parallelogram having a pair of parallel sides extending along the cords and a pair of parallel edges each forming a part of the axially outer edge of the belt ply, and said first and second topping rubbers alternately disposed in a circumferential direction of the tire.