Big Bike Parts? expands on the adjustability of its Smart Mount? Backrests with a quick detachable design. The backrest seat mount and backrest mount have been redesigned to incorporate a slide lock system that allows the backrest mount to attach through the seat opening onto two lock bolts that easily secures the backrest. A little lift and pivot forward or back, depending on fitment, allows the entire backrest pad and assembly to be removed in seconds with no above the seat hardware visible. Adjustable 1" vertical & 3" horizontal.