I've been cleaning out my shop and putting some of the things I don't ever plan on using on Ebay. I have a cruise control unit that came off my rat bike. I would like to know if there is a way to test it off the bike. I took the black plastic cover off and removed the curcit board and put power to the stepper motor. It seams to work just fine, and the board looks good, but how do I know for sure? I would like to sell it but I don't want to sell a bad unit.