I was stuck on the Highway yesterday after my fairly new S03 (2 years old, 3000 miles) failed. It was a hot day, but not extreme. I noticed a vibration at about 75 MPH and slowed to a stop within a minute. After removing the wheel, I took these photo's.
After taking these pictures, I inflated the tire to find out the valve stem had cracked on the inner portion next to the rim. These were put in new with the tires 2 years ago. What surprises me is how the tire got trashed from just the loss of air. Am I missing something (Do I have any reason to expect any discounting from TireRack?)