Hi all,

I recently bought a vintage bike from a local non profit bike shop and I was told the tires were new. I've ridden maybe 30 mi on it since I brought it home, but this morning when I went for a leisurely ride I noticed some wobble in the rear wheel, never had that before. I immediately cut my ride short and investigated. Looks like the tire sidewalls have frayed and there is a bulge in the tire.

My question is: did the tires just fail? Is it possible these tires were new to the bike, but not new-new and that made them fragile?

There is no identifiable thing that could be rubbing the tire sidewalls that I could see.

Curious if this is an experience others have had before. Thanks!