They're junk though. You have to kick start them and they don't have enough torque for anything but totally flat ground. Save your money and buy something else.
Or buy them in bulk at a massive discount to salvage batteries and motors.
Yeah, just pay a local bike shop to build you an ebike with an "unlocked" throttle so you're not limited to whatever the speed limit is in your area. I've seen people cruising at 25-30mph or so without pedaling at all.
They're far more practical, tons of fun, and you can opt to pedal to get some exercise. Total cost would be something like $1-1.5k + the cost of the base bike.