Originally Posted by
e_guevara
It's a post topper for frames with integrated seatposts (ISP). Looks like a Bontrager (or a replica).
Right. That's what I figured it was. But, I have no clue about the brand or size or anything. Trying to determine if they are worth selling. Maybe Bontrager, like you said.
I wonder if they are made specific to one frame or if they are some standard size.