The "BULGE" Acceptable Bulge in Repaired Radial Truck Tires

The "Bulge" Acceptable Bulge in Repaired Radial Truck Tires Repaired sections in radial tires may sometimes exhibit a slight "bulge". Blue triangle identification logos are now being used by some tire repairers. The Commercial Vehicle Safety Alliance/CVSA, which inspects trucks for safety defects, has adopted the blue triangular logo to help identify bulges caused by sidewall-shoulder area repairs. Those bulges due to section repairs are acceptable if they do not exceed 3/8" (9.6mm) in height. Tire Industry Association/TIA has a "Tire Facts" card available with a 3/8" cutout that allows for easy measuring of a bulge. For information and to obtain this card. call 800/426-8835. Rubber Manufacturers Association/RMA, offers "Tire Information Service Bulletin," Volume 15. This issue, "Radial Truck Tire Sidewall Section Repair Appearance", is illustrated. To order printed copies call 800/325-5095 ext. 242. "Bulges Can Be Beautiful" by Peggy Fisher, used with permission from Heavy Duty Trucking, July 1999. pdf download. Please take the time to read this news release about The Bulge. Download PDF (118.6 KB)

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