BOOSTED BRAD DYNA QUICK DETACH MOUNTING PLATES. CNC LASER CUT 11GA. STEEL WITH TIG WELDED MOUNTING BUNGS. THESE FIT ALL YEAR MODELS DYNA'S, 05-DOWN AND 06-UP, INCLUDING MODELS WITH SADDLEBAGS SUCH AS FXDP. DESIGNED TO WORK  WITH OUR QUICK DETACH DYNA SIDE PLATES, DOCKING HARDWARE, AND SISSY BAR. BIKES RUNNING FACTORY HARLEY T-SPORT OR FACTORY CONVERTIBLE BAGS BE SURE TO SELECT THAT OPTION. THOSE BAGS REQUIRE A TALLER REAR STANDOFF TO ALLOW MORE CLEARANCE FOR BAG INSTALLATION AND REMOVAL. AFTERMARKET T-SPORT AND CONVERTIBLE BAGS DO NOT REQUIRE THIS OPTION. ON 06-UP DYNA'S, THIS SYSTEM WILL ONLY WORK WITH OUR SISSY BARS THAT MEASURE 7-3/4" WIDE OUTSIDE TO OUTSIDE. 05-DOWN USE SISSY BARS WITH 6-11/16' OUTSIDE TO OUTSIDE.  AVAILABLE IN RAW STEEL FINISH OR GLOSS BLACK POWDERCOATED. PROUDLY MADE IN THE U.S.A.!!! FREE SHIPPING INSIDE THE CONTINENTAL USA!