What is the cheapest electric bike?

There is no any definite electric bike is the cheapest because they depends on variety kinds of factors. 

The cheap e bike means that is under your budget. However it is known to us that everyone's budget differs. What's more, the configuration you are choosing will be the core factor to decide is it cheap or not.

JOBO e bike manufacturer provides many configuration with diverse price from US$300-US$1000. 

You can always find your cheapest e bike here. Either folding electric bike or mountain  electric bicycle.