Another thing worth looking at is that if the post is a little sticky going up and down, a light reaming would sufficent in having a butterly smooth movement (any bike shop that does Brompton have that tool, I hope).
Are you still talking about bike stuff?
@Dramatic_Hammer started
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Another thing worth looking at is that if the post is a little sticky going up and down, a light reaming would sufficent in having a butterly smooth movement (any bike shop that does Brompton have that tool, I hope).