I aquired an old 250 2x4 utility for my son to ride till I can afford a recon for him. Right now the old 250 has huge rear tires on it. I think they are 25x13.5x9. I would like to go back to something closer to stock size or maybe even a little shorter. I think the stock size is 25x11x9, but I can't find any tires out of the Dennis Kirk catalog or online tire catalogs that match those dimensions. All of the 25" tires are at least 12" wide. What size would you guys recomend? We ride had pack trails with some mud and creeks. thanks in advance.