Road - Bear Mountain! 73 miles, 6.75kft, 16.5-17 mph given the climbing. Steady pace. Hard-pack dirt road climb before Bear Mtn - completely doable on road bike but would recommend 28s or bigger, ~2 miles. Gas station snack and water stop at mile 46, 5-10 minute stop. Drop ride with major regroup at the top of Bear Mountain to take in the sights! 5-5.5 hour elapsed time. Bring nutrition and fluids for 45 miles, flat kit, etc.
Route: https://www.strava.com/routes/3074053906024590032
Registration/waiver: https://waiver.fr/ktnhgroupride