Hey eveyone - Wanted to share info on my recent crash because I know lots of folks really like the Avon Storm tires. Of note, I've never had any issues with the original Avon Storms and absolutely loved them but the Ultra II's I'm not too fond of. The first Ultra II I had did a strange edge slice in the deep part of one of the treads at ~3000 miles and suddenly deflated. I was very fortunate to not crash and managed to keep the bike upright and pull off the road. I assumed it must have been a road hazard but couldn't find anything that I might have hit. With the second Ultra II I had, I got over ~12,000 miles out of it but it also had a strange edge chunk out of it. Once again, I assumed it must have been a road hazard even though I'd not remembered hitting anything. The third Ultra II was 11 days on the bike with ~1800 miles on it when it did a catastrophic delamination at highway speed. Totaled the bike and only by the grace of good protective gear am I still here. Fortunately, the weather was cool enough that I was wearing both my riding jacket AND riding pants, otherwise I'd be hamburger. So all three Ultra's I've used have had issues.... A number of other folks have expressed concern over strange wear on the Ultra II's as well as strange deformities - bubbles, weak spots, separation, etc. To my knowledge, my experience is the only full-out delamination but, given the recall on Avon Azaros for delamination it might be worth thinking twice on the Storm Ultra II's. Here are some photos of the tire in question. Air pressure was spot on as of that morning (500 miles before the crash) No known road hazard No weird handling No warning ~1800 miles on the tire mounted 11 days prior to the crash Going the speed limit NB on NM Hwy 285 between Roswell and Vaughn (mm 163.7) I rode it out ~150 yards then high-sided and tumbled another ~30 yards I handed my cell-phone to a good samaritan who snapped photos on the scene and then I snapped photos at the wrecking yard.