a seat connection mechanism having a saddle bracket portion and a pin portion is provided . the saddle bracket portion includes an inner pivot channel , an occupied position stop , an unoccupied position stop , and an outer surface which extends between the occupied and the unoccupied position stops . the pin portion includes a pivot pin and a stop pin protruding therefrom . the pivot and stop pins are positioned such that , and are spaced apart by a distance such that , when the pin portion is angled with respect to the saddle bracket portion at an insertion angle , the stop pin is positionable adjacent to the outer surface and the pivot pin is insertable into the inner pivot channel , and such that when the pin portion is angled with respect to the saddle bracket portion at an angle other than the insertion angle , the pivot pin is retained in the inner pivot channel .