| abstract |
A rubber composition for a tread for a passenger car tire that can improve wear resistance and workability in a well-balanced manner while maintaining low fuel consumption performance, and a tire for a passenger car having a tread using the rubber composition. about. A rubber component containing 5% by mass or more of isoprene-based rubber, 10 to 90% by mass of styrene butadiene rubber and 5 to 40% by mass of butadiene rubber is contained, and the isoprene-based rubber has a magnesium content of 20 ppm or less. A rubber composition for a tread for a passenger car tire containing a low-gelling natural rubber having a gel content measured as toluene-insoluble content of 10% by mass or less, and a tire for a passenger car having a tread comprising the rubber composition is there. [Selection figure] None |