Recently I noticed a little unevenness in the ride on my Nishiki, and saw that my rear tire had developed what I call a "wow" or a "warp", such that the tread was no longer centered, and the sidewall darn near rubbed the chainstay.
- Yet there was no localized bulge in the side wall at all, no obvious tread separation, and it was a relatively new tire when I bought the bike 2 years ago.
However - When I replaced the tire, I saw this:
What caused this? Is there a way to prevent it?