I have a 91 ST1100 and right now in shop but am wanting to do some farkle and need someone that can give me some quick help, I know I could wait till I get bike back but would appriciate some help... What are the measurements on the distance between the bolts that hold the backrest on??? I am wanting to put on a rack but don't know the distance between the bolts to mount supports for the rack, I am going to have to get holes drilled for bolts to go through and need to know if someone can tell me how far apart I need to drill the holes....