High volume and fast rolling, with good float! Bring an O2 tank or HEPA mask as well, or camp WAY pver to the left, as far away from the "tent city" as you can. The venue is sort of a low channel/valley that funnels all the dust & smoke down towards the staging/expo area. Unbearable breathing conditions all night make racing kinda tough, as it's hard enough being on the bike when you need to be. I'd recommend camping over by the rocks to the left as you enter the area.... up high, great view, and relatively fresh air! (typically that is)Bob the Wheelbuilder said:I've run these tires for 2 years there with great results. They're light, roll fast and have enough flotation for the sandy patches.