The install is simple. The mounting brackets use the existing 14mm fender bolts. My only complaint is these should be chrome instead of painted.
Drop the seat in the brackets and adjust the pitch for comfort. This backrest is really nice. It takes alot of the backache out of those long rides. I also notice that vibrations through the backrest make for a nice massage.
Update 2005 - After driving thousands of miles I have to give the Protac backrest two thumbs up! Probably the nicest addition I've made next to the handlebars.