The more I rode through that stuff the faster I went. I started out thinking my tires weren't really very good for it, and there's probably some truth in that, but it had more to do with my skills than the tires imo. When you start riding roads like that for tens of miles at a time you just get used to it. After a while I found a speed that worked and learned to shift my weight front to rear as needed to float over the sand. The DR650 did surprisingly well on the sandy roads. Deep sand was another story, but I think that's a problem on just about anything. We don't see much sand in Maine so we don't get to work on sand skills so much. Southeastern AZ is very rocky, not really that much sand unless you're in a wash.