Pneumatic tire

A pneumatic tire, comprising:

• a tread portion extending in a tire circumferential direction and having an annular shape;
• a pair of sidewall portions disposed on respective sides of the tread portion;
• a pair of bead portions disposed in the sidewall portions on an inner side in a tire radial direction;
• at least one layer of a carcass layer mounted between the pair of bead portions;
• a plurality of layers of belt layers disposed on an outer circumferential side of the carcass layer in the tread portion;
• the carcass layer being formed of a carcass cord made of an organic fiber cord, an elongation at break of the carcass cord being from 20% to 30%, an elongation under a load of 2.0 cN/dtex of the carcass cord in the sidewall portions being from 5.5% to 8.0%, a product A=D×Ec of a fineness based on corrected mass D (unit:
• dtex/piece) per the carcass cord and a count Ec (unit:
• piece/50 mm) of the carcass cords per 50 mm in a direction orthogonal to an extension direction of the carcass cord being from 2.2×105 dtex/50 mm to 3.0×105 dtex/50 mm,
• the belt layer being constituted of a belt cord formed of a steel cord, stress at break of the belt cord being 3300 MPa or more, a product B=S×Eb of a cross-sectional area S (unit:
• mm2/piece) per the belt cord and a count Eb (unit:
• piece/50 mm) of the belt cord per 50 mm in a direction orthogonal to an extension direction of the belt cord being from 6.0 mm2/50 mm to 7.5 mm2/50 mm, wherein
• the organic fiber cord of carcass layer is a polyester fiber cord formed of intertwined polyester fiber filament bundles,
• the organic fiber cord of the carcass layer has a heat shrinkage rate of 0.5% to 2.5% when heated at 150° C. for 30 minutes,
• the carcass layer is folded back around a bead core embedded within each of the bead portions from an inner side to an outer side in the tire width direction, and
• the bead core and a bead filler are fully wrapped by a body portion and a folded back portion of the carcass layer.