I just purchased them a couple of weeks ago from a guy who had sold his Road King. I have a 2013 Tri Glide and it will only accept a one piece seat! I did drill some extra holes on the trike and got the Riders seat to work (I like the seat a lot), but I cannot get the Passenger seat to work! So you know the old story, if the wife isn't happy----------!!!!
I have a C&C on mine now and seat is pretty hard, and the daughter was complaining the passenger seat wasn't comfortable, either. Was thinking of trying something different.
That is a subjective question! The seat is a lot more supportive than the stock HD seat, but not harsh like a Corbin! I weigh 275 and the stock seat just doesn't work for me!