So I'm 22 miles into my 42 mile ride yesterday in gorgeous conditions, when a gunshot goes off in my ear. Bike starts shaking and I look down to see a flatted rear tire. Get off and inspect the damage, and there is a nasty 2-3 inch gash along the top of the tire. Tried some emergency repairs but tire quickly flatted again so I had to call in for a ride home.
The scary part was not two minutes earlier I was coming down a very steep twisty descent with speeds in the 40-45mph range, not sure what would have happened if the tire had blown out then but I don't think it would have been pretty
Lesson learned, inspect tires before each ride. New set of GP4000s installed and I'm ready for what the road will bring tomorrow.
My brother had a similar experience. We were riding in a charity event and had just come down a monster hill. There's a rest stop at the bottom. We dismount, take a break, go to get back on the road and POW. I was trying to figure out why someone was throwing M80s at us when a passerby says (in his best stoner voice) "Whoa, dude... was that your tire??"
Brother looks down at his new (less than 20mi) tires to see a big gash. A few minutes earlier and it would have been bad. He found a park bench while the rest of us road ahead and got the truck.