The answer to that all depends on the weather and who I am riding with, but we have had a lot of wind so far this season, and there is a always a lot of climbing. I live on the benches heading up to a couple of ski resorts, so even if I don't climb those canyons, the flattest ride I can find always involves some climbing just to get back and forth from where I live. I recently did a 49.5 mile ride with 3,800 ft climbing @ avg 17 mph, riding with a fast friend and working hard, mostly in eco but in sport on the steepest sections and near the end when I was tired. On a recent 32 mile ride with 3,100 ft of climbing (about 5 miles @ 8%) ridden at a much more comfortable pace I only averaged 14 mph. On a 15 mile "noodle around the neighborhood" ride with 1,000 ft of climbing on a super windy day entirely in eco but with a bare minimum amount of effort from me, I averaged only 12 mph, absolutely no faster than I would have been on my regular bike at that effort, and possibly slower (slower than usual but it was crazy windy so hard to tell). Given that the Creo is a good 50% heavier than my road bike I am starting to believe that when eco is set to the default 35% assist it is mostly just making up for the extra weight I am pushing on the bike so I don't go that much faster, just can get away with less effort. The ride I am considering doing with my eBiking buddies on my non e-bike is 37 miles but only 850 ft climbing and I would expect to easily average 15 mph without undue effort. If my friends weren't on eBikes they would probably be closer to 11-12 mph