I finally got around to mounting 1 set of new tires front and rear on my "Good Friday" 520H after 22 years the original Dico brand were weather/dry cracked through the sidewalls only tubes were holding the air inside, @HorseFixer, Duke the 23x10.50-12 Nanco brand Ags mounted out to 9.5" not 10.50" but still more than 8" wide ,I don't think you would've been happy with that for your set up, but I'm OK with them being a bit narrow, means a bit more traction and bit less flotation for my intended purposes mowing,gardening, and snow pushing. The fronts are Trac Gard 16x7.50-8 turfs they were an PITA to seat the beads but got it done, had tire shop do the rears, also did inside MF approximately 45# and outside weights CC 30# on them and put my one off powder coated wheel covers on (they hide the "blue" weights that were originally MF red) all this today since I'm on 4-10 hour days now Friday is going to be project day, anyways here the goods, Jeff.