After many messages and calls to both addmotor and the dealer, it was determined my controller is bad. I was told they dont stock parts in the US and the controller would have to come from china. Many weeks later and nothing. Cant contact addmotor by email, phone or dealer by text or phone. I've had 2 nice rides ruined by this. One in glacier park and the hiawatha trail. I'm looking for a different bike, anybody need an addmotor for parts?