Hey Ian, I got this aftermarket tach, it is simply awesome and 1/4 of the price of H-D tach. I got this installed on my 06' night train, all I did was make a custom bracket to install between the handle bar clamp and it seat just in front of my drag bar. The thing works great and I never get tired of just the same color, also I have riden my bike in a major down pour and it is fine, just make sure you use some silicone to seal up where the wire plugs into the back.. GlowShift model 334, just google the thing.