and wondered why it did that. Well, I bought a set of rims with rubber a couple years back. They were all good but one. It had a bulge. It was no worry to me, I bought them for the rims. I proceeded to put them away with the masses. So they have been in my storage shed for a couple years. Today I decided to dig around and see what rims I have that would fit things. Well, I found this! This is a BFG Radial TA. It is literally separated at the seams. And believe it or not, it still is holding full pressure! If you see a bulge and wonder why it did that and if it's bad.........it's really bad!