Originally Posted by
CliffordK
I haven't been on the Chesapeake & Ohio Canal Tow Path, but I used to ride on the Katy Trail in Missouri. That path had a well packed fine pea gravel (limestone?), and was just fine with 23 and 25mm tires (except just after a snow melt).
C&O is totally different. Dirt, tree roots, hump in the middle in places, and can turn into a mud pit after heavy rain.