A removable seat for a vehicle that includes a roll over protection system. The seat includes a seat bottom and a seat back assembly. The seat bottom adapted to be removably coupled to the vehicle. The seat back assembly is spaced apart from the seat bottom and adapted to be fixed by a bracket or removably coupled to first and second posts of the roll over protection system. The seat back assembly includes a seat back, a beam and saddles. The seat back is longitudinally oriented and parallel to a forward direction of vehicle travel. The beam includes a tube, a first bracket and a second bracket. The first bracket being fixed to a first end of the tube and the second bracket being fixed to a second end of the tube. The saddles fixing the tube to the seat back and includes a curved portion fixed to the tube.