You don’t need big tires to have fun here, and almost no riders do, but show up with 42mm+ and you’ll have more opportunities for spontaneity Most of these roads are empty. Except for some D9xx connector roads there weren’t more than a handful of cars, just a few tractors. While wide tires are optional, wide gearing is a must have for rides like this with substantial sections of 15%+ grades of broken pavement.