I purchased a used Suede E for my wife and it appears to have an problem. When you attempt to ride it, there is a resistance in the front wheel that almost feels like you are riding with the front brake on sort of shudders a bit. The front wheel has been replaced (which is where the motor is ) and the battery is fully charged. The odd thing about it is that if you unplug the motor, the front wheel turns as it should. Does anyone have an idea what the issue might be or how i can diagnose the problem... I would be grateful for anyones input.. Thanks