Motherwell 2-Up Backrest Luggage Racks MWL-165-1 Chrome-plated or matte black powder-coated racks made of 5/8 steel tubing; hold up to 10 lb. To ensure proper fitment please measure the spacing between sissy bar uprights, Measuring from inside to inside, the dimensions should be 7.5 inches Sissy bar and backrest not included.