Well, I installed the rotor cover on my 08 Gl 1800 trike yesterday. Took my time and it took about two hours.Worst part of that job by far was finding the wiring harness plug to plug in to. I found it though, and everything works great. They are beautiful especially at nite and really draws a lot of attention. If I can be any help to anyone installing these, just let me know. thanks to all those who gave me their info.