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 have done tours on 37mm, 40mm, 50mm and 57mm width. My road bike is 28mm width and my rando bike is 32mm. I think a 35 to 37mm tire for touring is just fine.