| abstract |
The present invention provides a rubber composition which is improved in grip performance, grip durability and abrasion resistance with a highly good balance and a tire comprising the same. The present invention relates to a rubber composition comprising 50 to 120 parts by weight of a reinforcing agent containing particular carbon black and 10 to 100 parts by weight of silica based on 100 parts by weight of a diene rubber, 2 to 50 parts by weight of a styrene-butadiene polymer, in which weight average molecular weight is 1,000 to 15,000, the amount of a styrene is 17 to 27 % by weight and the amount of vinyl is 60 to 80 % by weight, and 2 to 25 parts by weight of an indene resin, in which the melting point is 100 to 150°C, based on 100 parts by weight of a diene rubber comprising at least 60 % by weight of a particular solution polymerization styrene-butadiene rubber and at most 40 % by weight of a natural rubber and/or a butadiene rubber, and a tire having a tread comprising the same. |