These are advertised @ 18 and one review claimed 22. 100 is insane here with lousy roads in Santa Cruz hiding all the dips, trenches, and hills. Last year max. unlicensed speed on those gas powered bicycles was 35, but electric bicycles was 20.
Amazon.com : MDS Online - EW36 MOBILITY SCOOTER, FAST POWER ELECTRIC POWER SCOOTER EW36 - RED COLOR : Three Wheeled Sports Scooters : Sports & Outdoors