> How much time do you think someone peddling under their own power could maintain 20mph? For as long as the hill lasts. I had a simple bike computer on my (no

> How much time do you think someone peddling under their own power could maintain 20mph? For as long as the hill lasts. I had a simple bike computer on my (not electric) mountain bike growing up, and once hit 33mph going as fast as possible down a hill in my neighborhood. Bombing down that hill I'd probably be at speeds over 20mph for a solid minute. A lot can go wrong in a minute. Especially since teenage me enjoyed going fast, and would sometimes bike down the hill as fast as possible, then immediately turn around, pedal back up it, and do it again.