OK, brand new to this forum, but I think I'm cursed. I just blew a tube while driving, yes driving, home from a 35 mile ride. It sounded like a gunshot in the back of my Pathfinder. Ok, the question: what are some of the common causes of tire failure? This is the 2nd tube I put in, because the last one wasn't holding air. My son's bike blew 2 tubes up literally in my face (enlightening). I replaced his rims because they had small, sharp nicks in the frame. I don't think this is the case with my wheel. Any suggestions?