I ride by 650R on the street just to get to my riding area. Unfortunately I have to ride 12 miles up a steep asphault road to get to dirt. The stock tire lasted me about 400 miles and it's bald. I have considered the Pirelli 21's and the Trakmaster DOT tires but I don't want to sacrifice dirt grip for street driveability. I mostly ride hardpack and sometimes go out to the desert (jawbone canyon/Dove spring in CA). Any recommendation for a Durable off road tire, am I better off just going with a aggressive DOT? How about the Maxxis IT that I have read so many good things about?