• You probably know the answer i.e. the mark is there for a reason.
    The question is more: Is this setup acceptable? :)

    If it were mine (I don't tell you to ride it like that):
    I guess they were taking some margins.
    If it was 2/3/more cm, I wouldn't ride it but this extra 'lenght' here looks reasonnable, especially if:

    • you're not too heavy,
    • the frame and its seatpost clamp are in good conditions.
  • you're not too heavy

    New seatpost it is then!

    Think I will be happier swapping it out. Difficulty is finding a Campy seatpost to replace it, so likely will get a Nitto for it.

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