RUN-FLAT TIRE

In order to achieve run-flat durability and ride comfort performance in a compatible manner, a run-flat tire (1) includes a side reinforcing rubber layer (10), a first bead filler (51) disposed on an inner side of a turned-up portion (6b) of a carcass (6) in a tire width direction, and a second bead filler (52) disposed on an outer side of the turned-up portion (6b) in the tire width direction. A first bead filler height (H) is 30% or less of a tire cross-sectional height (SH). A second bead filler height (H) is 50% or greater of the tire cross-sectional height (SH). A cross-sectional area (S) of the second bead filler (52) is in a range of from 150% or greater to 400% or less of a cross-sectional area (S) of the first bead filler (51). The side reinforcing rubber layer (10), the first bead filler (51), and the second bead filler (52) satisfy a relationship (0.16 × SH × LI - 1100) ≤ S ≤ (0.16 × SH × LI - 800), where S represents a sum of cross-sectional areas of the side reinforcing rubber layer (10), the first bead filler (51), and the second bead filler (52), SH represents the tire cross-sectional height, and LI represents a load index.