Are you asking about the JL-250cc Motorcycle
at http://www.extreme-scooters.com/jinl...Motorcycle.htm
I don't know aanything about the bike but I would be concerned about their claim of up to 80 MPH and 100 MPG. In my experience with dealing with about six of these drop shippers is that they either don't know their products or are liars.

Are you an experienced motorcycle owner/mechanic or have access to one? If not then stay away from these bikes.

Do more google searches to see if you can find anyone with experience with this bike.