I've wanted a Harley for over 20 years and refused to buy a bike until I could get a Harley. I used to ride my brothers motorcycles when I was younger and loved it exept for breaking my wrist in a crash (lesson well learned). Anyway, my wife and I now have and Ultra Classic and love it. I'm trying to learn all I can and I'm wondering what a stage 1 upgrade is. It may be a dumb question but I can't learn without asking.