When combining accessories and adapters, the low load capacity / payload is relevant.
Contour Saddle Adapter
Contour Saddle Adapter · black
Fixation for bags on saddle – adjustable angle
The Adapter allows mounting bags to the saddle. Due to the increased distance to the rear wheel especially suited for 29” mountainbikes, full suspension bikes, small frames or bikes with hydraulic seatpost or as an alternative attachment on bikes with carbon seatposts. An angle adjustment ensures that the bag can be perfectly aligned independently from the saddle rails.