Joined: Aug 2010
Posts: 12,689
Likes: 2,094
From: Madison, WI
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
I spent a day on some pretty rough Texas chip seal pavement, my hands took a beating and my GPS was acting erratic from the vibration. I had between 55 and 60 psi in my front 1.5 (40 mm) width Schwalbe Marathon tire. The next day I dropped my pressure to between 40 and 45 psi in my front tire, but no change in the back tire which was between 75 and 80 psi. My hands and GPS were much happier at the lower pressure in the front tire. And I did not notice any additional rolling resistance.