What makes a tire bulge?

You have a broken steel/fiber ply belt in the sidewall of the tire.

pbjunkie on October 23, 2009, 1:00 am

damage...you should replace it!

jimeigh on October 23, 2009, 1:00 am

Bulges typically appear on the side (or wall) of the tire, as this isthe weakest and thinest point of all road tires.

sphen603 on October 23, 2009, 1:00 am