The full build-out of the Monon South will take a while. This is the longest section open as of the date of the ride. The fines are well compacted; I had my gravel bike but my road bike with 700x28 tires would probably have been suitable. (But note addendum below.) Not the most thrilling rail-trail ride but the sheer length of the thing will make it notable once it's complete. Addendum: After the initial post I saw that my average power output for the ride was 274 watts. That's a lot for a ride that's essentially dead level with consistently solid conditions, more what I would expect from a hilly road ride or a mountain bike ride. Given that, I think a tire width of 2.4 inches or 60 mm would be a better choice to reduce rolling resistance.