I have acquired a new to me BT carbon track frame.
The previous owner was clearly much taller so I’ve had to cut the seat post to length.
The piece I cut off has this threaded adjustable piece glued into the bottom of the post.
It’s an aftermarket 3rd party insert and not a std BT part.
Anyone got any pointers to where I might get one, it seems like a great idea.
Otherwise I’ll measure, model and 3d print one. Thanks
by robertodebongo