I just came back from my first Dune riding ever! I went to little Sahara in Utah and LOVED it! I can't believe there is so much fun to be had. It was great and my Preddy was great. I think I will need to change my sprockets to 13/38 for a little more low end power. I went with the stock rear tires and still had fun, but I want to get some sand tires for the next time. What size are you all running? What brands should I consider? I don't want to spend lots on them because I live so far from the sand that I won't use them alot. I see the sand sharks and sand devils are low priced, are these good choices? My Preddy has had no problems since day 1, and I can't wait to go again! What a spectacle! I can't wait till Easter. Crypto.