| 摘要 |
The purpose of the present invention is to improve low fuel consumption and durability. A belt cushion to be arranged between a tire-axis-direction end of a belt layer and a carcass comprises an outer layer, an intermediate layer and an inner layer which are arranged in this order from the tire-axis-direction end of the belt layer toward the tire-radius-direction inside. Each of the outer layer and the inner layer is formed by a rubber composition (B) having a complex elastic modulus (E*b) and a loss tangent (tandb). The intermediate layer is formed by a rubber composition (C) having a complex elastic modulus (E*c) that is almost the same as the complex elastic modulus (E*b) and a loss tangent (tandc) that is smaller than the loss tangent (tandb). |
