Best answers by saneagle

There are two identical looking versions that have different comms. One uses UART and the other CAN. It's never clear which version people are selling because they're normally sold for a specific bike as a spare part. You can tell which version you have by how many wires are connected to your...

Thr best ones are the cheapest ones that you find on Amazon or Ebay. Many can be derestricted by setting the top speed in the LCD. When the battery expires, upgrade to a 48v one with a new controller to get 30% more power and speed...