So do these exist? I love my Bogner, it's the best cab I ever used but I hate the casters on it. They are really small and some don't turn right and it's becoming a hassle now that I play shows and such.
I had a Bogner 4x12, one of the casters got fucked rolling it on the street, got another quad of casters, again broke after 2 months. If I were you I'd get a pair of these instead: http://mesa.stores.yahoo.net/43tracremcas.html
Will any of these fit on the current mounting brackets because I wasn't really looking to spend $80 on a full kit and then also compromise the value of the cab because of "different brand" casters haha.
Those little casters that all the companies use are total crap. Go to the Mesa Boogie store (www.mesaboogie.com) or the Mesa Hollywood store and order Mesa 3" casters and roll with ease. When I ordered new Bogner cabs, I ordered casters at the same time.