There are no mud terrains in that size. Kind of makes sense because it's a more practical-oriented size and generally mud terrains aren't the most sensible tire choice (a notable minority who do mud or extreme rock crawling excepted). I remember from your thread that you like MT tires, so I think you made the right choice with 255/80. However, you might consider the 33x10.5R17 Interco SS-M16 - Interco tires run large, and the spec is 33.5", same as the 34x10.5R17 sizes in Toyo and BFG: https://www.intercotire.com/tire/82 . Supposedly the SS-M16 is a street-friendly hybrid tire.I didn't miss it. That was actually my first choice in tire size. I couldn't believe Toyo didn't offer that size tire in a Mud Terrain, very disappointing! I may end up with the Toyo AT tire in the future, but I love aggressive MT tires. Great choice BTW! Do you know if BFG makes an MT in that size? (34x10.5r17) My only other option is 285/75r17 = 33.8x11.2 even in this size MT choices are limited. Toyo does make one in an MT, C-load, but I would prefer no more than 10.5 wide.