| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition capable of producing a tire that improves rolling resistance performance, wet skid performance and driving stability of a vehicle in good balance, and further reduces fuel consumption, and to provide a tire having a tread comprising the rubber composition. SOLUTION: The rubber composition comprises silica (1) having a nitrogen adsorption specific area of not more than 100 m<SP>2</SP>/g and silica (2) having a nitrogen adsorption specific area of at least 180 m<SP>2</SP>/g of 30-150 pts.wt. in total based on a 100 pts.wt. of the rubber composition, wherein the contents of silica (1) and silica (2) satisfy the formula: [content of silica (1)]×0.2≤[content of silica (2)]≤[content of silica (1)]×6.5, and the tire has a tread using the rubber composition. COPYRIGHT: (C)2006,JPO&NCIPI
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