Quote Originally Posted by jmdaniel View Post
Okay. I think you're talking about the add on they sell as a center rail for the dual trailers.
Nope, that's not what I am talking about. As I said, around 2015 they changed the design of the rails and chock on the single (and double) trailer so the front tire will fit between the rails instead of tending to ride up on them, twisting the steering a bit. It is available as a replacement part from Kendon.