6 over I am about 190, no 2 up.Will be lowered again about 1.5 inches in the rear.13.1 is stock, Trac says 15.2 for a 175lb rider.Dont know the conversion.I put a new spring on but I guess it was pretty much stock at 700lbs.It was taller, bigger round and stiffer than stock but I rub still when lowered.