Patent ID: 7082976

Claim:
A pneumatic tire having a rubber member at least partially constituting a tread portion, the rubber member being formed of at least two layers of an outer layer on a tire surface side and an inner layer on a carcass side, wherein a blended amount (X) of an antioxidant in the outer layer is present in a range of 0.4–1.6 weight % of the entire composition of the outer layer, and the blended amount (X) of the antioxidant in the outer layer and a blended amount (Y) of the antioxidant in the inner layer satisfy the following expression (1): Y≧− 0.4 X 2 +2 X (1) and further wherein, the inner layer contains antioxidant blended throughout the inner layer; and substantially the entire surface area of the inner surface of the outer layer is in contact with the inner layer.