My Bridgestones lasted 17 years and looked fine from the outside but when they were dis-mounted the beading and some of the sidewall stayed behind on the rim.
I was definitely being stupid to leave them that long
but I seldom drove at speeds higher than 50 MPH, and I won't be so careless again. Mind you they where very easy to spin up as the tread had hardened nicely
and you could drift the car at low speed as it was akin to driving it in the wet even when roads were wet.