I was kinda hoping I could go really fat in back. I'd like to keep it stock tolerance if at all possible but I do own a welder so anything is possible.
I have just done some pre-checking on my Spaceliner frame, that I haven't build up yet and I would say 26" x 2.125, although I have not tried a 24". It is defiantly a middle weight frame.............not what I would classify as a ballooner