Run-flat tires (RFT) are designed to continue functioning for a limited distance even after losing air pressure. They achieve this through two main technologies:
Reinforced Sidewalls – Run-flat tires have thick, stiffened sidewalls that can support the vehicle's weight even when air pressure is lost. This prevents the tire from collapsing and allows the driver to continue driving for a short distance, typically up to 50 miles (80 km) at reduced speeds (usually around 50 mph or 80 km/h).
Self-Sealing Technology (Optional) – Some run-flat tires have a self-sealing layer inside that can close small punctures automatically, preventing air from escaping.
Since run-flat tires allow the vehicle to keep moving after a puncture, they improve safety by reducing the risk of sudden blowouts and eliminating the immediate need for roadside tire changes. However, they generally provide a firmer ride and may wear out faster than standard tires.
