2010 KEYSTONE SPRINGDALE Tires Problems

IN LATE JUNE OF 2015, DRIVING BETWEEN HAILEY, IDAHO AND REXBURG, IDAHO ALL OF THE TREAD CAME OFF OF THE PASSENGER REAR TIRE OF MY 2010 SPRINGDALE 5TH-WHEEL TRAILER. THE TIRE NEVER LOST AIR PRESSURE AND WHEN CHECKED AFTER THE TIRE WAS CHANGED THE TIRE STILL HAD THE 50 LBS. THE TIRES ARE CARLISLE RADIAL TRAIL ST205/75R15'S. THE TREAD LOSS CAUSED MINOR DAMAGE TO THE TRAILER, LUCKILY NOT CAUSING A CRASH. ONCE THE TIRE WAS REPLACED ALL OF THE TRIES WERE CHECKED AND ANOTHER TIRE WAS FOUND TO HAVE CROOKED TREAD AND A BULGE IN THE CENTER OF THE TREAD. AFTER SITTING ON THE TRAILER AS A SPARE FOR 2 MONTHS, THE TIRE TREAD BEGAN TO SEPARATE, JUST SITTING THERE. THE TIRES HAVE BETWEEN 2000 AND 3000 MILES ON THEM AND THE TRAILER IS ONLY USED MOSTLY EVERY OTHER WEEKEND FOR 3 1/2 MONTHS.

I EXPERIENCED A TIRE BLOW OUT ON MY 2010 KEYSTONE SPRINGDALE RV. THE TIRES HAVE LESS THEN 1000 MILES ON THEM. THE TIRE IS A CARLISLE ST225/75R15 RADIAL TRAIL. I NOTICED A "BUBBLE" IN THE SIDE WALL JUST PRIOR TO THE BLOW OUT. THE TIRE SEPARATED AND BURST. THANKFULLY I WAS TRAVELING AT A LOAD RARE OF SPEED AND NO ACCIDENT OCCURRED. I WAS ABLE TO CHANGE TO MY SPARE. UPON INSPECTION OF THE REMAINING THREE TIRES, I NOTICED ONE MORE WITH A "BUBBLE" AND THE OTHER TWO WITH CRACKS IN THE SIDEWALLS. I WILL BE HAVING THEM REPLACED UPON MY RETURN HOME. *TR