The bolts that came with the ghost brackets are fine, if I was not using the luggage rack, is not much of a difference but enough to make me a lil worried. If my measurements are correct I am 2 mm is from the edge, I would prefer to have a least 2mm clearance on the other side. With the difference in the knobs/attachment points for the ghost brackets I think I would need two at 70mm and 2 and 65mm. if it is a lil too long well then I am handy with a dremel. "shurg"