Are you still looking for the right luggage rack? Before you send your order, please call or send me an email so that I can inform you about the right carrier solution for your motorcycle.
Luggage racks are usully made of round tubes with a diameter of 16 or 18 mm. Ofcourse 18 mm racks are safer. I can get you an 18 mm Touratech rack for some types of modern motorcycles. Furthermore I offer instruction-manuels with some pre-cut parts for home-assembly or the conversion of racks. http://www.berndtesch.de/Deutsch/Ausruestung/TraegerTouratech.html