The 2014 Corbin seat will not work with the Harley adjustable back rest. You have to buy the Corbin rider back rest if you want one.

 

I've got the Harley standard height backrest on my bike with the Corbin seat I just had made - no problems with it. There's enough room there the adjustable backrest shouldn't be a problem. Look at my picture of the seat on page 1.

 

Interesting. The technician I spoke with today at Corbin said it definitely would not work. Maybe they are just trying to sell their own back rests?

 

I got my new Corbin seat yesterday only put about 30 miles on it but I am very happy with it