Hi Top - Do you think the tube just failed and that the rapid decompression caused the rim failure (in TWO places - 180 degrees apart)? My LBS says they've seen tube failures damage rims before but ONLY at pressures significantly above 100 psig. This tire was only at 85 psig! My LBS said they don't think the tube blowout is the cause of the rim failure (actually, they seem to think that the rim failure was the cause of the tube blowout). Do you disagree with them? If so, please expound - I REALLY want to get to the bottom of this so I can prevent it from happening again. Thanks for your input!