Years ago, while actively racing in the desert on a KTM 550, the tire of choice was a Dunlop 695 Desert. It lasted, hooked up well, and most endearing to me, was usable till the knobs were mostly gone. These tires are still listed in few mail order fliers. Nowadays, riding a good mix of trail types, I find the Dunlop 756 to be an excellent choice. I run these on my 450, and had used them on my previous 501. So if you happen to see a 695 Desert offered, pick it up for future use, I doubt you will tear it up. Buzzard