Wittco Saddlebags will not work on Harley
  RoadKings, RoadGlides, Ultras, and other models in that category due to the
rearward placement of the shocks on those models.
Our bags have a flat inner side and the above models of Harleys require a recessed area or 'cutout' area for the shock

  All 3 sizes of Wittco Saddlebags will work well on Harley Davidson Dyna, Softail, & Sportster models.