Mustang Motorcycle Seats One-Piece Wide Studded Touring Seat with Driver Backrest Deeply pocketed front bucket measures a full 18" across 12" wide passenger seat The built-in driver backrest offers more features than any other backrest on the market One-piece, marine-grade fiberglass baseplate directly replaces the stock one-piece seat and attaches with one rear bolt Vibration is minimized with the strategic placement of rubber bumpers