Started life as a White Shark 36 volt. I knew what I wanted to do as far as mods, so when componets failed, I just replaced with what would be the final statement. First stock item to fail was the controller, replaced with a 380 amp, 48 volt controller which of course made we swap out the Hall Effects throttle for a 0~5K pot. So now with a controller that can pull some amps, after awhile "poof" terminal melts right off the battery. In goes (4) PC 680s, so it wasn't long that the factory motor died, in come the Etek. Later than pictures, upgraded the controller again to 72 volt 480 amp by Logicsystems before they became a household (among EVers) name.