| 摘要 |
PROBLEM TO BE SOLVED: To provide a studless tire improved in both of initial on-snow/ice performance and on-snow/ice performance after degradation while maintaining good wear resistance performance.SOLUTION: The studless tire has a cap tread and a base tread, in which the cap tread is manufactured using a rubber composition (A) and the base tread is manufactured using a rubber composition (B). When a content of a softening agent in 100 mass% of the rubber composition (A) is denoted by a (mass%), a content of a softening agent in 100 mass% of the rubber composition (B) by b (mass%), a percentage of weight of the cap tread relative to weight of the whole tread by c (mass%), and a percentage of weight of the base tread relative to the weight of whole tread by d (mass%), the following relational expressions (1) and (2) are satisfied: a×c/100<b×d/100 (1); and a≥8 (2). |
