TIRE

DRIVE June 11, 2026
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Provided is a tire () including a tread rubber layer () and belt layers (A, B) located inward of the tread rubber layer () in the tire radial direction. The tread rubber layer () includes a rubber component, a resin component, and a filler. The rubber component includes an isoprene skeleton rubber and a styrene-butadiene rubber having a glass transition temperature of less than −40° C. The resin component has a difference of the SP value relative to that of the isoprene skeleton rubber of 1.40 (cal/cm)or less. The tread rubber layer () satisfies the formula: mass ratio of the resin component/isoprene skeleton rubber ≥0.5. The belt layers (A, B) include cords formed by twisting filaments satisfying, when the diameter of the filaments is X (mm) and the tensile strength of the filaments is Y (MPa), 4000−2000X≤Y≤4500−2000X.

Discussion in the ATmosphere

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