Pete n Mike, do u2 do alignments on ur bikes? And is it possible to screw up the alignment when changing the rear tires? I did make some adjustment on one rear and the bike rides true, without any wear pattern up front. The other RT was aligned and now has some outer wear on the right front edge. Thoughts? And I have Altimax in the rears of both if I get Vredesteins up front -what tire pressure? The Altimax in the rear is 18-20lbs