Well done Fred, great achievement.
What do you think caused the tyre problem? I've not come across anything like that before -except a memorable moment with an electric fire!
I'm not sure. They are rated at 100psi and I put 100psi in them. the tyre didn't tear or anything, it just ballooned and stretched the tread-pattern alarmingly. I was waiting for a loud bang to be honest as I quickly tried to deflate the tyre.
I've inspected it and I can't even tell where it deformed now. The tread looks fine as do all the threads inside.
The problem is of course that once it's stretched once it's likely to do it again so I can't take any chances.
Any long rides in future will be done with a folding spare in the bag(The 1.5" Tourguard is quite light). Shorter ones will be done with a tyre boot to patch over weak spots.
Tip: Take a small stick of chalk so you can quickly highlight any defects/punctures on tyre and/or tube.
Oh yes, and one of the best tips I have seen (and used on the ride):
When you have a puncture/breakdown on a long ride have a snack and a drink BEFORE making plans or starting the repair.
Doing this means 1. You eat and drink with clean hands, 2. you calm down and make better decisions 3. You calm down and make less mistakes during the repair.IT REALLY WORKS