| 摘要 |
Provided is a winter tire having both improved grip performance on ice and abrasion resistance and further having good mechanical strength. The winter tire includes a tread formed from a rubber composition containing: an oil-extended BR having a cis content of 95 mol% or more, a vinyl content of 1 mol% or less, and a Mw of 530, 000 or more; an isoprene-based diene rubber; silica; and carbon black, the oil-extended BR being synthesized using a rare earth catalyst, the composition containing, per 100% by mass of total rubber solids, 8-80% by mass of the BR component contained in the oil-extended BR and 13-80% by mass of isoprene-based diene rubber, the composition containing, per 100 parts by mass of total rubber solids, 15-125 parts by mass of silica and 3-70 parts by mass of carbon black, provided that the combined amount of silica and carbon black is 45-130 parts by mass. |
