What the heck happened? I was riding my road bike yesterday and my rear tire blew out. Not just the tube, but the tire. There's about a 1 inch hole in the tire. I don't think I hit anything, I was on a paved path and riding up a hill, standing on the pedals. Then BOOM. Thankfully I was close to a friend's house who came to pick me up.

Any idea what could cause this? My tire wasn't overinflated. I had changed out the tube on the same tire to a thicker "thorn proof" tube about a month and a half ago. My front tire still has the thin tube that came with my Trek. Never had a problem there. Go figure

Thanks for any input! Off to the LBS I go for some new wheels