Alan B
100 GW
formula101 said:20 mph uphill on a 7 percent grade is EXTREMELY fast for a bicycle. I typically manage 7 to 10 mph on a regular bicycle (no motor). 3x that speed is amazing.
Clearly, bicycle speeds are insufficient for your son. Get him a car or a motorcycle. The rad ain't cuttin' it. Common sense FTW.
20 mph is not fast for an ebike, even on a hill. Even 750W ebikes have triple to quadruple the power of an average cyclist. The purpose of an ebike is not to emulate a cyclist.
Not everyone wants a driver's license.