TIRES

Abstract

The present invention aims to improve the wet grip performance of a pneumatic tire, and the pneumatic tire has a tread section with main grooves formed in a circumferential direction and a carcass section, wherein the tread section is formed using a rubber composition comprising as a rubber component a styrene-butadiene rubber (SBR) having a glass transition temperature of -50 °C or lower and less than 40 parts by mass of an isoprene-based rubber per 100 parts by mass of the rubber component and at least 130 parts by mass or more of silicon dioxide having a CTAB-specific surface area of ​​190 m² / g or more per 100 parts by mass of the rubber component, and the pneumatic tire fulfills the following formula (1), wherein AE (wt%) is an acetone-extractable content of the rubber composition,CTAB (m2 / g) is the CTAB-specific surface area of ​​the silicon dioxide and D (mm) is a distance from the carcass section to a groove bottom of the main groove: AE×CTAB / D>500,

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