Joined: Jul 2002
Posts: 40,863
Likes: 3,115
From: Sacramento, California, USA
Bikes: Specialized Tarmac, Canyon Exceed, Specialized Transition, Ellsworth Roots, Ridley Excalibur
I ride roads like that all the time on 25mm tires, but I would try to fit as big a tire as possible. It will reduce the chance of a pinch flat, make the ride more comfortable, and give you better handling if it gets muddy.