Fitting the Givi was really a pain in the butt, and it took several weeks of thinking (I’m not that bright) before I came up with a solution.
The brackets are in two parts, one part that’s permanently fitted to my bike, and one that is fitted to the wingrack. So now, installing the wingrack is done by 4 allen screws (a 5 minute job). The wingrack is located pretty far from the center of the bike, due the rather wide tail of the bike, but as long as the topcase plate is tightened properly, the rack is actually pretty stable. Note the small reinforcement on the bracket for the wingrack, don’t omit it – all weight is carried in this point.
The bracket that is permanently installed to the bike is the hard one to make. It consists of three parts: Two brackets (one on each side of the bike) and a large H-shaped bracket located under the rear seat.
The smaller visible side brackets (the one from the top picture) is mounted in the passenger foot rest bracket and to the H-shaped bracket.
The H-shaped bracket is made from 5x20mm flat steel. Two bars are running on top of the rear frame tubes just under the rear seat, right next to the relays on the left and the fuse box on the right. The center bar of the H is located between the front of the tool box compartment and the two rear studs that holds the rear seat. You probably have to take the tool box compartment out to squeeze the bar in. when everything fits nicely, you weld the three bars into a “H”, be very careful to be precise, there’s no room for mistakes (Note that no welding at all is done on the bike, all brackets are detachable.)
Now, the rear ends of the H-bracket are drilled and a M6 thread is cut to be used as rear mounting point for the two small visible brackets. The front end of the “H” is secured to the rear frame tubes on which the bracket stands. I used steel ties (I don’t have the right word for them, but they are the ones you use to tighten a hose to a stud, and you tighten them with a screwdriver.) Be very careful to avoid destroying the wiring which is located nearby.
Its a tight fit and a hell of a job, but if you take your time the result is pretty good. I’ve seen other home made brackets for the Givi / Guzzi 1100 sport combo, but most of them looks like shit. This one is almost invisible when the wingrack is not installed, and stable at +200 km/h (almost allowed in Denmark when you’re riding a beautiful Italian motorcycle).