ahsposo 

Forgive me if this is a rehash but my search didn't help.

My stock saddle on my Boardwalk is one of those cheapies that attaches to the seat post hole and is adjusted for level with two opposing nuts. It won't hold a level for me and it's truly irritating. Plus I feel like I want more setback but that's a minor issue.

Am I limited to The Kore I-Beam post if I want to get a post that will accept a saddle with rails (and maybe a little less bulk)? Is the seatpost diameter and length consistent through the Dahon line?

Thanks.