Originally Posted by Black wallnut

I am happy if I get 2500 miles from a premium Specialized Armadillo tire, on the rear, twice as much for a front. Are you lining up the valve stem with the same exact spot on the tire each time you change the flat? I line mine up with the center of the label while paying attention to the rotation direction arrow, not that direction matters for tire performance but it sure does when it comes to finding small punctures. Next time before you dismount the tire from the rim mark both the ds and valve stem location on the tire. When you find the location of the puncture on the tube lay it over the tire and identify a 2" spot on the tire where the puncture is and closely inspect the tire at that point inside and outside. You will find the cause of the puncture.