Not quite sure what is happening to my tyres.
On friday night riding home from work my tyre had a sudden bulge in it. It looked as if something had been rubbing on the side wall. I checked to see if anything was rubbing but nothing was coming into contact with the side wall.
Today I was riding on different wheels and the exact same thing has happened. All the little bits of rubber that stick out the tyre from being in the mold have warn off. Again I check if it rubs on anything and it dosnt.
Any ideas as to what is happening?