I installed it with the rack for the back rest. Took the top part off, lined everything up and used aluminum rails underneath, Stainless steel metric bolts and SS lock washers. Metric bolts that way if ever emergency on the road everything is metric. Used locktite red for all the bolts. Nothing is coming loss. Using the standard mounting for the sissy bar makes removing and install very easy. If I remember I saw this on youtube. The guy actually used a suitcase with pullout handle and wheels removed them and installed those onto the rack. That way he can remove and move it with the wheels to his motel room at nite. Very ingenious. This install took me about a whole day. Time to line up everything, correct minor mistakes as I went along.Wife loves it, because it's comfortable, but especially because there's room for all her stuff. Good thing I have a big bike for all the stuff I mean. She only weighs 105 lbs. I've got to watch she doesn't blow away in the wind LOL.