Available with or without a fully adjustable and easily removable driver backrest, Mustang's deeply pocketed driver seat is a full 16" wide and sits you at the ideal cruising angle with extra width in the hip area for all-day comfort. On Two-Piece Seat sets without the driver backrest, the driver's back is well supported by the nose of the passenger seat that extends forward to create a full 8.5" backrest. The passenger sits comfortably in a 12.5" wide bucket that utilizes Mustang's unique internal steel support wings to keep the entire width of the molded foam supported. Two-Piece Seat set includes solo and passenger seats. Note: Mustang solos will not work with Yamaha handrail.