TIRE

DRIVE October 15, 2025
Source
A tire having improved chipping resistance performance is provided, wherein the tire has a tread portion, the tread portion has a cap rubber layer and a base rubber layer provided radially inward of the cap rubber layer, the cap rubber layer contains, as a rubber component, 40 parts by mass or more and 60 parts by mass or less of styrene-butadiene rubber (SBR) with a styrene content of 25% by mass or less, and 30 parts by mass or less of isoprene-based rubber, in 100 parts by mass of the rubber component, and, as a filler, 100 parts by mass or less of silica with respect to 100 parts by mass of the rubber component; and is formed from a rubber composition having a loss tangent 30°C tan δ of 0.25 or less measured under conditions of temperature of 30°C, frequency of 10 Hz, initial strain of 5%, and dynamic strain rate of 1%, and deformation mode: tensile; and the ratio of the thickness of the cap rubber layer to the thickness of the base rubber layer is 2.3 or more.

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