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Pinarello F4:13 seatpost question

runner81runner81 Posts: 9
edited February 2015 in Workshop

My 2010 F4:13 has a MOst 30.9mm (I think). However Where ever I'm looking - It states that that pinarello uses 31.6.

Is it possible the previous owner installed some shim?

Looking for a new seatpost, I want to make sure I'm getting the right diameter.



  • keef66keef66 Posts: 13,123
    Google comes up with nothing useful. Pinarello only do manuals back to 2012.

    Suggest you whip it out and measure the seatpost with calipers. Or ask a friendly LBS to measure it for you. As a last resort wrap a strip of paper round it, mark where it overlaps and then measure the circumference and work out the diameter from that.

    It should be obvious if there's a shim stuck in the seat-tube. Shims often not recommended by CF frame manufacturers, my Scott included.

    If you can't see a shim and the current seatpost fits without slipping or becoming stuck, then that's the size you need.
  • Thanks -

    I measure 30.90 (Digital calipers), But since I can't find any documentation for such dimension on a Pinarello post, I was hoping someone experienced with Pinarello, preferably that model, will be able to comment from experience...
  • keef66keef66 Posts: 13,123
    Over to the Pinarello owner's club then...
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