| abstract |
Provided is a tread rubber composition for studless tires that has excellent performance on snow and ice and has excellent wear resistance while reducing the strain dependence of the hardness of the tread rubber and ensuring rigidity on non-snowy roads. To do. A diene rubber having a total content of natural rubber and polybutadiene rubber of 80% by mass or more, silica, and carbon black, wherein the diene rubber is represented by the following formula (1). For studless tires containing 10% by mass or more of polybutadiene rubber modified with a compound, 10 to 150 parts by mass of silica and 3 to 50 parts by mass of carbon black with respect to 100 parts by mass of the diene rubber Tread rubber composition. [Chemical 1] [Selection figure] None |