| 摘要 |
<p>A tire (2) comprises a tread (4), a sidewall (6), a bead (8), and a carcass (10). The bead (8) includes a core (20) and an apex (22) which extends outward in a radial direction from the core (20). The apex (22) has an outer layer (24) and an inner layer (26) which is located to the inside of the outer layer (24) in the axial direction. A hardness of the outer layer (24) is greater than that of the inner layer (26). A difference of the hardness between the outer layer (24) and the inner layer (26) is 15 or greater and 30 or less. A ratio of a thickness of the inner layer (26) to that of the apex (22) is 40% or greater and 60% or less. A ratio of a height HA in the radial direction of the apex (22) to a height HS in the radial direction from a bead base line to an end of the tread (4) is 40% or greater and 60% or less.</p> |
