I just purchased a 2009 Goldwing trike with a Hannigan trike kit. I was interested in who you used to get the rear brakes replaced. If it is anything like the rear tires, the motorcycle shop tells you to go to the local tire shops and the local tire shops tell you to go to the motorcycle shop. I ended up take the rear tires off myself and taking them to the local tire shop. I know that the Hannigan trike uses a car disc brake. I have always trusted my local Honda dealer to do all of the maintenance work. They told me they do not want to mess with the rear brakes. Let me know what suggestions you have to get this work done.