I have a 26" Firestone Super Cruiser frame & dual springer fork & I can't decide what to use on it or what will work. I wanna get the biggest fattest tire I can on the back of the bike. Right now I have a 26x2.3 fat frank on it but still could go bigger but don't think the 26" 3G tire will fit. Also was thinking about maybe a 24x3 set up on the rear but not sure if that will fit either. Anyone have a monark frame that they put any of these set ups on?