Night Train, I think my Thunder Heart is giving up the ghost. My flashers stopped working and I've had some other intermittent issues with my bike. I pulled the TH controller and put 12 volts through the harness to the flashers. Everything lit up. I've had the motor just kill for no reason. Looking at the controller, some of the solders look discolored. It sounds like the 4250 is pretty reliable. Question 1 - would you replace with the same controller? Question 2 - I saw somewhere here that somebody bought one for $185. Can you tell me where I can get the best deal? Question 3 - Is there a good and inexpensive way to bypass the controller for the flashers? Thanks!