Didn't mean for it to turn into this, but BFG AT smaller than a BFG Long Trail? Don't think so. I made a mistake in the actual diameter of the Long Trail; If it is a 235 70 R15, then the diamater is 28.1" and if it is a 235 75 R15 that equals 29.0" according to http://www.bfgoodrichtires.com/