I OWN A 2006 BMW 530I WITH 37,000 MILES ON ORIGINAL SET OF BRIDGESTONE RFT TIRES 275/40 R1893Y. THESE ARE LOW PROFILE TIRES AND ON NOV 16, 07 < BROUGHT MY CAR IN FOR A TIRE CHECK AT THE DEALER. THEY DETERMINED THAT THE RT REAR WHEEL WAS CRACKED AND HAS DAMAGED THE TIRE. THIS THEY SAID WAS NOT COVERED UNDER WARRANTY AS THEY SAY THAT IT WAS DAMAGED FROM A POT HOLE. I SAID THAT I HAVE BEEN DRIVING CARS LIKE CADILLAC, MERCEDES, CORVETTE AND NEVER BROKE A WHEEL. THEY WOULD NOT COVER IT AND IT COST ME $900. NOW ON APRIL 11, 2008, I WENT TO MY TIRE DEALER THAT I HAVE BEEN BUYING TIRES FROM FOR 20+ YEARS. HE SAID THE LEFT REAR AND FRONT WHEELS WERE CRACKED AND ALSO RUINED THE LEFT REAR TIRE. I AM VERY UNHAPPY AND WOULD LIKE TO KNOW IF THE BMW 18" WHEELS ON THE ABOVE MENTIONED TIRES ARE DEFECTIVE. *TR