Originally Posted by
indyfabz
Bicycles with an Electric Assist System are considered to be any unicycle, bicycle, tricycle, or
quadracycle with an electric motor not exceeding 750 watts of power, a maximum weight of 100
pounds, pedal-assist, and top-speed utilized not in excess of 15 miles per hour, or less if
otherwise noted.*
Yep, that's pretty standard and pretty much the same definition the National Parks Service is going to use. Although the 15mph limit is interesting given that I think most of us can get our human-powered bikes moving faster than that. In my state, a bike like that does not meet the state definition of "motorized vehicle" so it can go pretty much anywhere a bike can go. If you exceed that wattage, then I think you're in moped territory and have a lot of other rules and restrictions.