Joined: Feb 2013
Posts: 1,472
Likes: 11
From: Near St. Louis, Missouri
Bikes: Giant Defy Advanced, Breezer Doppler Team, Schwinn Twinn Tandem, Windsor Tourist, 1954 JC Higgens
I just did the entire KATY Trail in Missouri a couple of weeks ago. It's crushed limestone. I used 700x32s at 65 psi. A buddy of mine was on 700x25s at 90 psi. He was getting beat up so bad that he'd get off the trail any time there was a parallel road. 700x28s would be the least that I'd consider if I was doing to be on such a trail for any distance over 20 miles.