Saddlemen SAD-SC806BR Replacement Backrest for SDC Seats Series SC80604/SC81830/SC81829This is for a replacement lumbar rest only, for the following Saddlemen SDC seats SC80604DBKRT SDC Pro Series seat for H D Dyna 2006 2017 SC81829DBRT SDC Pro Series seat for H D M8 Softail Low Rider S ST, Sport Glide 2018 2024 SC81830DBRT SDC Pro Series seat for H D M8 Softail Standard and Street Bob This lumbar rest includes pad and bar, and is a replacement lumbar rest for seats that originally came with a lumbar rest. It cannot be added to a seat