I just picked up a set of new Rhino tire take-offs for less than $100. They are Maxxis M951, 952 tires. They are 25x8x12 and 25x10x12. I'm amazed at the improvement over the stock tires! They claw through anything, improve ground clearance, and are a night and day improvement in the mud. This is a great cheap alternative to buying after-market tires. I see them for sale cheap all the time by people who want to go bigger than 25" on their new Rhinos. You can check out the pattern at dennis kirk if you're interested.