| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire which has a foam rubber applied to a tread, and in which on-ice performance obtained by integrating the braking performance and driving performance of the tire on an ice road surface is stably excellent from the start of use of the tire.SOLUTION: A tread of a tire comprises a surface rubber layer which forms at least a ground contact surface of the tread, and an internal rubber layer which is adjacent to the tire-radial-direction inside of the surface rubber layer and which is made of a foam rubber. A modulus Mof rubber elasticity of the surface rubber layer is lower than a modulus Mof rubber elasticity of the internal rubber layer. |
