Special quick-release adapter plate enables mounting a standard Krauser K-wing case (K3, K4, and K5 only)to a SW-MOTECH Alu-Rack toprack. Quality metal construction with Quick-Lock fasteners, which allow the mounting plate to be quickly removed when not in use. Includes fitting lugs and rubber vibration-reducing bumpers. Required Krauser K-wing bracket (part 150533.15) is NOT included and is sold separately.Installs quickly using basic hand tools. No cutting or welding of existing motorcycle components required. Includes basic diagram-type instuctions which may have small amounts of either English or German text (or both). Black.