They aren't the best of bikes, but they seem to run okay and for running around town and whatnot, they're not bad. They're a little hairy at speed since the tires aren't true and balanced, nor is there a steering dampener, but they're designed to cruise at 30-45mph. Top speed is about 55, down a hill, with a tail-wind, and a midget driving.
For example, a twin of the yellow bike that came in didn't have stops for the gear selector in the trans, and would go directly to 5th gear from first when you shifted up a click. You really get what you pay for, but for a fun screw-around or pit-bike, they're not bad.
I work for ElectroJet in Brighton. Right now a small start-up company. We are developing small engine fuel injection systems for the Asian motorcycle market for now, with many other plans and ideas floating around for the future.