| abstract |
The present invention has its object to provide a rubber composition that can be used for a tread to supply a tire excellent in low heat build-up property and wet grip performance. n The present invention relates to a rubber composition including a rubber component that containsn a modified styrene-butadiene rubber in an amount of 5% by weight or more per 100% by weight of the rubber component, the modified styrene-butadiene rubber having, in a main chain thereof, a constitutional unit derived from a specific nitrogen-containing compound; and the rubber composition further including silica in an amount of 10 to 150 parts by weight per 100 parts by weight of the rubber component. |