A Tire That Will Roll Over the Sand?

John wol: I chose a tire that i knew would handle ok in the sandy stuff and would float over all the decomposing granite. The tire i chose was slow on all the fast sections of the course, but it floated through the sand awfully well. And when i got to the rock it rolled over that stuff without flatting. Plus i was more comfortable, which is a thing for me, due to my spinal stinosis a. If i pinch one of the nerves in my neck or shoulder, i get really incredible pain that causes me to pull over  but the upshot to all this is that i never fell, and i never flatted.