Dougt from Onawa, Ia on 1/4/2019 8:52:31 PM:
Well, you can do anything if you're motivated enough, but I'd say that it would be pretty tough on the western portion of the trail. It gets rougher from O'Neill west, gravel is thicker, tracks from ATV's make it rough and vegetation on the trail. I'm a road biker but would recommend a gravel or mtn bike for this. I rode from Norfolk/Valentine and back last Sept and posted a review in Oct. You might find some helpful information if you read it.