By law in the U.S. electric bikes cannot provide assistance over 20mph. https://en.wikipedia.org/wiki/Electric_bicycle_laws#Federal_Laws_and_Regulations_Pertai

By law in the U.S. electric bikes cannot provide assistance over 20mph. https://en.wikipedia.org/wiki/Electric_bicycle_laws#Federal_Laws_and_Regulations_Pertaining_to_the_Sale_of_Electric_Bicycles https://en.wikipedia.org/wiki/Electric_bicycle_laws#Federal_...