NHTSA Complaint #758824 — 1989 JEEP COMANCHE

I HAD A NEARLY NEW TRIUMPH R 1200 TIRE FAIL IN AN UNUSUAL MANNER. THIS TIRE HAD ONLY ABOUT 800 MILES ON IT WHEN IT FAILED, AND I'M REASONABLY CERTAIN THAT THE FAILURE WAS NOT DUE TO ABUSE (OVERLOAD, POTHOLE, CURB SCUFFING, ETC.). A LARGE BUBBLE FORMED IN THE SIDEWALL OF THE TIRE. THE BUBBLE WAS APPROXIMATELY 4" DIAMETER AND 3/4" HIGH. THE BUBBLE APPEARED TO DISTORT THE BEAD, CAUSING A LARGE LEAK BETWEEN THE TIRE AND THE WHEEL. THIS OCCURRED ON THE FIRST REALLY WARM WEATHER DAY FOLLOWING INSTALLATION, LEADING ME TO SUSPECT A POSSIBLE MANUFACTURING DEFECT THAT NEEDED SOME HEAT TO MANIFEST ITSELF. THIS FAILURE SEEMED UNUSUAL ENOUGH TO WARRANT REPORTING, EVEN IF MY THEORY IS INCORRECT. PLEASE LET ME KNOW IF YOU NEED MORE INFORMATION ABOUT THIS. I STILL HAVE THE TIRE IF FURTHER FAILURE ANALYSIS IS OF INTEREST. THANKS- WILLIAM T. DALEY, P.E. MECHANICAL ENGINEER. *AK (DOT NUMBER: ? TIRESIZE: P205/75R15)