I posted about this in my other thread "What Tires are Best for Me?". I don't know what size of All Trails to buy for my 210. They have them in 23x10.50-12, 25x10.50-12, and 26x12-12. Everyone says to go for the big 26" tires but IMO they look a little too beefy and I don't really want them. I wouldn't mind going bigger than the stock size but then again I don't want them to be TOO big. Does the size of the tire affect the aggressiveness/traction? I have my heart set on All Trails instead of Field Trax because of the 4-ply rating. I either want to get the 23's or 25's. Does either size perform better than the other? Also, will it cause the tractor to be "unlevel" if I decide to run the 25's with the stock 16,6.5-8 front tires?