I imagine that geometry and the mounting of racks to take heavy loads is going to be an issue on most gravel bikes, but they are great for rackless bags and long tours. I've been touring on a Carbon Cervelo RS with an endurance type geometry for a few years now and it's only drawback is the tire clearance, but it was great on the gravel of the Erie Canal and I only had two punctures on the entire Northern Tier. I run 34/36 as my lowest gear and find that with a fairly light load I don't need anything lower.
That sounds like a rocket!
