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I'm running a Pirelli XCMH now. I got it because every front tire I have ever used has the side knobs break off or split at the base and almost break off. So far none of that with the XCHM. I also wanted a DOT tire. It seems to work great in the mountains. I've got to say that I'm not all that happy about how it worked ion the desert. Had a way of washing out. No crashes because of it, but there have been some stressful recoveries. Not sure I like the down side in the sand enough to go with it in the future. Time will tell.