Harley Davidson '04-up Sportster Detachable Docking Kit FITS: 2004-later XL(883 and 1200) models equipped with Detachable Sideplates, P/N 53913-04 or Detachable Solo Rack without saddlebags. Used for detachable accessories. Chromed Detachable Sissy Bar and Detachable Rack Docking Hardware Kit.