| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic run-flat tire capable of improving durability during run-flat running while suppressing degradation in riding comfort during normal running.SOLUTION: A side reinforcing rubber layer has a double layer structure comprised of a relatively soft first side reinforcing rubber and a relatively hard second side reinforcing rubber. The position of an outer end of the second side reinforcing rubber in the tire diametrical direction is defined within the range of 55-70% of a tire cross-sectional height SH, thereby achieving high durability during run-flat running while suppressing degradation in riding comfort during normal running. |
