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 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: