Did you run your new speedo from the bike's existing wire harness? Did you have to make any changes? I have four wires: a plus and neg for general power when the ignition is on, and a plus that gives a speed pulse to a negative.Check out this website. It is for aftermarket speedo's. I have had one on my 2002 Spirit 1100 for several years and have had very good luck with it. Not sure if there is any US dealers but they are a good product.