US Patent 11173756 Pneumatic tire

A pneumatic tire mountable on a 15° tapered specified rim includes a bead core, a carcass, a steel cord reinforcing layer, a bead rubber layer, and a first reinforcing rubber layer. A distance from a second line segment to a third line segment is from 4 mm to 8 mm; a side of an outer portion and a side of an inner portion of a bead base portion bend at an inflection point located in a range from 8 mm to 18 mm from the first intersection point; and an angle γ formed by an extension line drawn from the side of the outer portion inward in the tire radial direction and the side of the inner portion is from 4.5° to 14.5°.