Here’s a drawing that better shows what parts would be new and what parts are the original seatpost parts. The red bit is the new steel adapter plate.
The tricky part is figuring out how to efficiently manufacture something like that. And to make it reinforced and strong enough in the right areas so it doesn’t break. I’m just the idea man. I haven’t done any engineering on the idea.
A very similar adapter could be made for the Thomson seatpost.
