Jueshuai 48V 500W Electric Bike s900 26" 48V 12AH

More or less the same bikes the NYC delivery guys ride. We bought one and it has been really good. I changed out the stem and handle bars for a more relaxed posture than the flat bar the bike came with. Its marketed as a mtn bike but there is not much mtn in this bike. It is fine on dirt/grass/mud/wet roads. I posted this same answer in another thread. I don't sell these bikes and I'm not connected to the company in any way. Just like this bike.

I have also seen it marketed as "DJ Bikes Electric Mountain Bike" but some details are different (display, motor, some controls). I think the Jueshuai is nicer.