"A run-flat tire is a pneumatic vehicle tire that is designed to resist the effects of deflation when punctured, and to enable the vehicle to continue to be dri

"A run-flat tire is a pneumatic vehicle tire that is designed to resist the effects of deflation when punctured, and to enable the vehicle to continue to be driven at reduced speeds" [1] [1] https://en.wikipedia.org/wiki/Run-flat_tire https://en.wikipedia.org/wiki/Run-flat_tire