I'm sure this topic has been whooped into submission by now, but I'm too lazy to find it in the search. (and I'm at work) I'm looking for an aggressive knobby DOT approved tire for my WR450. I've tried Metzeler Enduro Sahara 3s and Pirelli Mt 21 so far. The Pirelli being the better of the two. Both wore out very quickly.(under 1000 miles)I don't ride road too much either, under a 1/4 of the time. Any suggestions?