Hey guys, I am going to be converting my 1993 Massey Ferguson 1260 from turf to R1 ag tires. The turfs are 212/80 d15 and 355/80 d20. I already sourced the 11x24 rear rims and centers. I spoke with the dealer and they said the 7x15 front rims I have would be suitable to put an ag tire on to match the rears. The only 7.00x15 ag style tire I have found is for a skid steer. I know you have a 0-5% margin. All the research I have done leads me to believe I may have to get 8x16 rims unless I can be within spec with the rolling circumference. My question is what size tire is everyone else running on this model tractor?