Universal Bike Rack Mounting PlateUse in conjunction with Adventure Bike Rear RacksIncreases overall rack surface area for a variety of basic plastic storage cases or larger soft luggage bags to be securely installedEasily attaches to rear rack with predrilled holes and locking tabs in several locations to mount more forward or back on the rear rack surfaceAttaches by locking in the tabs to rear rack and tightens down with a hand knob included in kitAll mounting hardware and installation instructions included along with a threaded hand knob to install any variety of hard cases with center thread inserts