A rider backrest needs the right seat and mount
Adjustable Rider Backrest 52300731 works with its specified slotted seats and requires a separate model-specific mounting kit. Hammock Backrest 52300745 instead slips into the receiver in the listed Hammock seats, including 52000746/52000747; it does not fit the original-equipment seat. It includes the backrest assembly and protective grab-strap pad. These attachment systems should not be chosen interchangeably simply because both support the rider.