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The Prevention of Bead Dislodgement of Tires and the Importance of Limited Run Flat Capability on Safety
Published January 01, 1985 by National Highway Traffic Safety Administration in United States
Modern car tires of tubeless design rarely blow out. Should a sharp steering maneuver be executed on a deflated tire, the tire beads could dislodge, giving rise to blowout like conditions. Pirelli and Goodyear have developed a new hump design which significantly increases the level of bead retention. During the bead dislodgement maneuver, the road applies its force to only a small section of tire corresponding to the footprint area.