I recently purchased a King rider with both backrests and found it to be very comfortable. I'm 6'3 and a bigger guy. It sat me back maybe an inch, and sat me up just a little which was noticeable by the height of my windshield line of vision.. No big difference in seating position, but a hell of a lot more comfortable and supportive than the stock. I do find myself sliding forward sometimes in it, as it is leather versus that foamy weird material on the stock seat. I love the looks of it and my wife said it is much more comfortable as a passenger. I found mine used on craigslist and still paid $650 for it. It was only used 2000 miles before owner sold bike.