Okay desert rats, what the best bang for the buck tire you've tried? On the old XR600 I was partial to the perelli MT21s. Seem to last about 1200-1500 miles. I saw in the recent dirt rider mag that some racers where using a 140/90 michelin desert tire (oct, pg 128). Any body know the designation for the mich? I'm looking for something stiff to match up with my new Moose bib-mousse in order to minimize heat build up. Also needing some good poop on what's the optimum tire pressure for desert riding and where's the best deals on tires.