PNEUMATIC TIRE

Japanese Patent JP2023078762

A

To provide a pneumatic tire sufficiently improved in grip performance during high-speed steering.SOLUTION: In a pneumatic tire in which a direction of mounting in mounting the tire on a vehicle is designated, a cap rubber layer 21 of an outermost layer of a tread part 2 is divided in a tire width direction, and a cap rubber layer 21a positioned outside the vehicle is formed of a rubber composition which contains 25 mass% or less of styrene in rubber constituents and has a glass-transition temperature of -18°C or higher. When a content ratio of carbon black in the cap rubber layer 21a positioned outside the vehicle is defined as COUT (mass%), a ground contact area ratio is defined as LOUT, a content ratio of carbon black in a cap rubber layer 21b positioned inside the vehicle is defined as CIN (mass%), and a ground contact area ratio is defined as LIN, the following (formula 1) and (formula 2) are satisfied: CIN