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Author Topic: Is there such a thing as a 26.3mm dia seat post?  (Read 1839 times)

Paul

  • L'enfer, c'est les autos.
Is there such a thing as a 26.3mm dia seat post?
« on: 24 February, 2018, 09:43:44 pm »
My too-short seatpost seems to be 26.3mm in diameter, but I can't find that size on the SJSC website (where they seem to have a lot of sizes).

There's 26.2 and 26.4. Shall I get 26.2 and risk having to shim, or 26.4 and risk it not fitting?
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Brucey

Re: Is there such a thing as a 26.3mm dia seat post?
« Reply #1 on: 24 February, 2018, 09:50:31 pm »
IME a seat pin that is labelled 26.4mm is usually nearer 26.35mm when you measure it accurately.

 If the seat pin is not anodised, and has a conventional turned finish, it doesn't take that long to abrade away 50um from the diameter if needs be.  Use ~400 grit paper.

cheers
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Paul

  • L'enfer, c'est les autos.
Re: Is there such a thing as a 26.3mm dia seat post?
« Reply #2 on: 26 February, 2018, 12:22:07 pm »
Helpful as always. Thanks Brucey.
P.
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citoyen

  • Occasionally rides a bike
Re: Is there such a thing as a 26.3mm dia seat post?
« Reply #3 on: 26 February, 2018, 12:36:28 pm »
Have you measured the internal dimensions of the seat tube as well as the external dimensions of the seat post?
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Paul

  • L'enfer, c'est les autos.
Re: Is there such a thing as a 26.3mm dia seat post?
« Reply #4 on: 27 February, 2018, 10:22:35 am »
Or, it seems, I can just remove the post and look at the numbers written on it (26.4).

 ::-)
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