That's sort of what I'm saying. I expected the studded Marathons to roll way worse. I would think that a non-studded Marathon might roll pretty well. I don't know about how they'd handle. The studded ones do not inspire confidence on dry pavement, but that's not their purpose. Personally, I'm not racing whether there's ice or not - just trying to get across town. I don't think a tire is going to make much of a difference in average speed. But FWIW Strava tells me there's very little difference between these and some cheaper non-studded tires. Maybe 1 mph. A windy day slows me down more than that.