Diagnose my flat

So I am riding along today and I hear a funny noise. I slow down to figure out what it is and POP! I have a flat tire. Not only do I have a flat tire, but I have tire damage.

I am wondering what happened. Did the tube popping cause the tire damage? Or did the tire fail due to age/mileage? Tire is a Micheline PR2 - about 3 years old with 1000 miles. Did I overinflate? Or did the heat outside cause the tire to become overinflated?

My buddy just brought the car back and picked me up. Could I have repaired this and rode it in? I figured the tire wouldn’t hold with the damage.

http://i32.tinypic.com/116mddd.jpg
http://i31.tinypic.com/fy1oiw.jpg
http://i32.tinypic.com/rjp7c5.jpg
http://i31.tinypic.com/zy7b01.jpg

Just trying to figure out what happened today. Thanks guys.

Looks like the bead separated from the sidewall. The tube probably came out to see what was going on and POPPAROONI!

How are your brake-pads aligned?
I have seen this happen when the pads were misaligned, eating away on the tire sidewall.

Don’t think either that you could have repaired it on the road, unless you had about 10 inches of cardboard handy.

1,000 miles on a 3 year old tire? You need to ride more! What pressure are you running? Probably some dry rot in the tire and the bead failed. Not sure you could have roadside repaired that. The typical GU wrapper/Dollar bill trick probably wouldn’t work with a sidewall separation that large with any pressure in the tube of 65 psi.

How are your brake-pads aligned?

I would bet money it was the brake pads. An object on the road doesn’t do that.

Not likely the case being that your tire is 3 years old, but last week, a fellow rider had a similar flat and the GU wraper trick worked thank goodness, but it turned out to be a recall/manufacturer issue, Bontrager tire, can’t remember the model sorry. Just a heads up if you ride em, take a look at the beads just to be safe.
PS yes 1000k on a 3 year old tire…your poor bike, being negelcted like that it’s amazing it talks to you. :wink:

Thank you for all the “ride more” comments. It’s not my only set of wheels/tires.

My hypothesis was dry rot as well. I may never know for sure what happened. I will check on the brake pad alignment, but I am fairly certain that’s not it.

PSI was 115-120 inside at the house.