Last year, Paul Tufano’s 19-year-old son, an avid cyclist, turned his father on to cycling so much that he agreed to a five-day bike ride across Pennsylvania with his son, beginning in Pittsburgh and ending on Father’s Day at Independence Hall, near their home the suburbs of Philadelphia.

With his wife and 17-year-old daughter driving the “sag wagon” (a cycling term for a vehicle to assists riders who have to stop riding due to fatigue), Tufano, 48, and his son, now a freshman at Harvard University, made their winding, grueling trek across the state.