Anyone here ridden the Alpine Loop GF in Harrisonburg VA? Their website recommends road bikes equipped with sturdy tires (Gatorskins or similar) due to the 11 miles of gravel and dirt. I get the feeling that Gatorskins or a similar tire are overkill for a 110 mile road ride with 11 miles off-road.
How bad are those dirt sections, and would I be okay with 25mm GP5000s? I have ridden those on mild gravel sections plenty of times with minimal issues.