Hello, i have a 2011 Madone that i purchased new less than a month ago, it only has about 25 miles on it, i have replaced the tires with Michelin pro 4 only because i wanted the red wall tires, i have rode 10 miles on them so far. Today i was trying out my crank brothers mini tire pump that i just got, i inflated the front tire up to about 120 lbs, then i noticed the side wall on the tire says max inflation 116 psi or 8 bars max, i realized i only inflated it 4 psi over and dismissed it, i went to inflate the rear tire up but as i started that the front tire's inner tube exploded, dismounting part of the tire in the process. i checked the inside of the wheel and the tire and found nothing sharp that could of punctured it. can 4 psi over max tire inflation do that? possibly a defect in the tube? now im going to be paranoid of a front tire instantly deflating on my next ride!