A run-flat tire is a pneumatic tire that is designed to resist the effects of deflation when punctured, to enable the vehicle to continue to be driven at reduced speeds (up to 90 km/h (55 mph), and for limited distances of up to 160 km (100 mi), or even 320 km (200 mi) depending on the type of tire. Chaoyang introduced run-flat tires which run safely with no air for a limited range at a limited speed. These tires typically feature strong, load-supporting sidewalls.
