The frame of the carrier is where the straps are attached, and is further joined with the car’s rear bumper, hatchback, and trunk. Before you place the bikes, make sure that you have setup the carrier properly.
Yakima Glass Hatch Hook Hatch Adapter for Yakima Joe Series Trunk Racks by Yakima. Save 3 Off!. $19.36. Designed to expand fit applications of Yakima's Joe series trunk-mounted bike carriers. Allows the Joe carriers to be used on glass windows of hatchback cars and other hard-to-fit vehicles.