Just installed the new Harley analog/digital tachometer/speedometer on my 2004 Sportster. Part# 70900274. I didn't cheat and put a minimal number of miles on it, I put the actual, but that was only a little over 9000. The unit will not work without at least something be loaded on to it. On my 2004 Sportster I am able to install the tachometer, my main reason for buying the unit, speedometer, trip meter, and clock. That's it. And almost infinite number of colors can be had. I used the blue since my bike is blue and black. Red was a bit hard to read in the sunlight. As to who manufactured this unit well, on the box it says Parts from Switzerland, Assembled in USA, looks like in Milwaukee WI. Installations wasn't so much trouble but it was a little bit of a pain in the butt getting everything set. Toggling back and forth and waiting for it register was time consuming. And on something's if you weren't fast enough you had to start over, like the clock for instance was a pain. But aside from all that I love the unit, it looks great and it's nice to know the RPM of the engine.. I love it and would recommend it to anyone thinking about it.