I was very disappointed with my DJ City bike. On Pedal Assist level one, it shot forward all the time. I would do one rotation of the wheels, and it shot forward, I would wait for my companion (on a reguar bike) to catch up, then do one more rotation, then shot forward again, waited for her to catch up, etc. Am very curious as to whether all DJ bikes operate like this, or whether the one I got was defective? Does anyone else own one?