I second the Panaracer T-Serv and Vittoria Rando Pro recommendations. I run the T-Serv up front on my hardtail commuter because it is nice and cushy. The Rando Pro on the rear is stiffer and bombproof. The T-Serv's run a little small, if you want circa 1.5" order the 1.75", looks like it is closer to 1.6 on a wide rim. Love them both.