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Please Help: 20mm Seat post

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  • November 5, 2013 at 4:20 pm #20162
    spin cycle

    Hi,

    I have an old Peugeot steel bike that I want to restore for L’eroica and also use as a commuter/2nd bike.

    The problem I have is that the seat post is too short and I can’t for the life of me find a post that will fit. It has a diameter of 20mm, does anyone have any ideas where I may be able to get one?

    Cheers

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Viewing 5 replies - 1 through 5 (of 5 total)
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  • November 11, 2013 at 12:48 pm #762257
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    mashergirl

    I found a NOS on ebay ,24mm
    I found a NOS on ebay ,24mm and very long, the guy posts from Poland but only took 4 days to UK

    http://www.ebay.co.uk/itm/251373908771?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1558.l2649

    November 7, 2013 at 11:16 pm #762255
    0
    Tjuice

    spin cycle wrote:Last night I

    spin cycle wrote:
    Last night I double checked with a cotton tape measure (highly accurate, I know) and it is closer to 24mm, so I’m taking it to an engineering workshop near where I work to get a proper reading. I really hope it is a 24mm(

    If it is around 24mm, then it’s probably the same as the one on my Peugeot. And a 23.4mm Decathlon post plus beer can shim will do you right. Keeping fingers crossed for you!

    November 7, 2013 at 9:44 pm #762253
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    drfabulous0

    spin cycle wrote:C I’ve

    spin cycle wrote:
    C I’ve wasted about 2 hrs on the tinternet

    Nevermind, that’s what it’s there for.

    November 7, 2013 at 9:05 am #762251
    0
    spin cycle

    Cheers Tjuice, I had it
    Cheers Tjuice, I had it measured by a bike shop near my dad’s (where the bike was in residence) and they measured it with an old micrometre. Last night I double checked with a cotton tape measure (highly accurate, I know) and it is closer to 24mm, so I’m taking it to an engineering workshop near where I work to get a proper reading. I really hope it is a 24mm, but that means I’ve wasted about 2 hrs on the tinternet looking for something i dont need ~X(

    November 6, 2013 at 9:32 pm #762249
    0
    Tjuice

    Is it really as narrow as
    Is it really as narrow as 20mm? That really seems very narrow indeed…

    I have two old steel Peugeots. I replaced the seat post on one, and if I recall correctly bought the post from Decathlon. As it happens, the one I bought was marginally too narrow. It came with two shims to increase diameter of post, but both were too thick. Cutting a panel out of the side of a beer can, I was able to make a perfect shim.

    Not sure if that proves to be any help, but good luck!

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