I didn't have a back seater, just me riding so I had them just do the drivers seat and build it out of the original seat pan. They want pictures of you on the bike and measurement of leg inseams and height and weight and they build you a very comfortable seat. I was very impressed with the comfort right from the day I put it back on the bike. If I remember right the seat plus shipping it back to me was $654 buck. But that didn't include me shipping it too them.002.jpg