The Nitto R-12 Bag Supporter is light weight and used to prevent your loaded saddlebag from rubbing on your rear wheel or resting on your fender.
In addition Bag supporters can prevent saddlebag swaying and reduce stress on leather straps.
Mounts on the seat stays by tension gripping. Rails are coated to prevent scratching.
Being lighter weight than the R-10 or the R-14 we'd not reccomend this one for your extra large Saddlebags but it works great with those in the 7 to 11 liter sizing.