This is a common misconception about the Amish and other plain people, eg stricter Mennonites. They don’t have a universally agreed about set of rules. Each community sets its rules differently. Most Amish don’t reject technology wholesale they slowly evaluate individual technologies for what effects they would have on the tight knittedness of their community and closeness to god. For example most Amish places of business have electricity, battery powered lights are common as well as gas powered fridges. They generally don’t reject modern medicine. However, they generally don’t have electricity at home because they don’t want to be reliant on the grid at large. If and how much solar and wind power are adopted in Amish communities will be an interesting thing to observe over the next decade or two.

Now there are some communities who reject all power that doesn’t come from “gods creatures” and will reject e bikes and stick to push scooters and buggies. But e bikes totally fit in a lot of Amish and plain communities.