SBP?

It means it's a solid chunk of rock hard rubber that slides all over the place. Just like a set of BFG TA's.

I don't care if you want to run crap tires or drive a car that rides like a wet noodle. But if you don't care what the actual advantages of ditching the SBP rims are, then don't ask.
Hey, some guys like hockey pucks, the same ones who get their bootlegger spinning then start jerkin the wheel right & left so it looks like it was fishtailin' :rofl: