On a similar vein.. I am not using the original dash on the STealth project bike, I'm looking at a small electronic setup. I'm not a big fan of the hall effect sensors these use but I've found that ACEWELL (who make the aftermarket dashes) also have a sensor that is a direct plugin for the ST1100 speedo drive, so instead of it driving a spinning cable through to the speedo it sends and electronic signal. This makes it great for my project.