The tires on my Ural are bald (ish), I'm going to bring along extra Russian gnarly knobbies just in case (courtesy of James Reed). I'm sure there'll be plenty people to "supervise" a tire swap.
If it does rain Friday like it's supposed to, it'll be a different experience. Never ridden in rain in BB before. I guess we'll find out if the Urals float!
I just checked in at the el dorado, I have my Baja tire tool withe if you want to borrow it. I'm on the camo f800gs if you see me around