I have a friend who just bought a new RSS and is interested in a backrest. I have yet to see his bike. Is all that is required is just the backrest or is there more to it than that? Looking at the BRP catalog the prices seem outrageous. I saw this from another owner and don't know anything about them. Can somebody give a review? Thanks so much.

http://www.classiccruiser.com/RoadKr...Spyder/909226/