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  1. #1
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    how to calculate how many chainlinks I need?

    Hello, I want to know how to calculate how many links should be my chain. I saw a chain in ebay that has got 102L, but how to know if will fit to my fixie?

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    Elitist carleton's Avatar
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    Quote Originally Posted by heiwaz View Post
    Hello, I want to know how to calculate how many links should be my chain. I saw a chain in ebay that has got 102L, but how to know if will fit to my fixie?
    The easiest way is to count your current chain.
    Quote Originally Posted by gtrob View Post
    Roadies can run tempo all year as that's what humans were designed for. If you want to be a cheetah, lay around and lick your paws more.

  3. #3
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    I haven't chain, sorry. I'm mounting my new fixie, buying all componets.

  4. #4
    Veteran Racer TejanoTrackie's Avatar
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    First off, is it a used chain ? If so, don't buy it. You don't want to built up a new bike with a used worn chain. Normally, new chains have more links than that.
    What, Me Worry? - Alfred E. Neuman

    Quote Originally Posted by Dcv View Post
    I'd like to think i have as much money as brains.

  5. #5
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by heiwaz View Post
    I haven't chain, sorry. I'm mounting my new fixie, buying all componets.
    Chain length is a function of chainring and cog sizes, and chainstay length. The best way to determine chain length is to buy a long chain, mount it on your bike and trim as needed.

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    And 102L do you consider a long chain?


    This mount my fixie:

    Chainring: 46T
    Cog: 16T
    Centro BB to centre rear wheel: 41cm (16")

  7. #7
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    Quote Originally Posted by TejanoTrackie View Post
    First off, is it a used chain ?
    It's a new chain

  8. #8
    Veteran Racer TejanoTrackie's Avatar
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    102 links is not a long chain, however, it should be long enough for your situation.
    What, Me Worry? - Alfred E. Neuman

    Quote Originally Posted by Dcv View Post
    I'd like to think i have as much money as brains.

  9. #9
    on Baby Charlie Concept~ muckymucky's Avatar
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    yup 46t, sounds like you'll be alright
    just to throw an example for you with the kilo tt:
    i wanted to buy the wipperman IG8 chain but it only came in 96 links probably cuz its for bmx. ended up being just right for 49T x 17T. and the bb to end of dropout distance on kilo tt is about 16 inches as well.
    Last edited by muckymucky; 01-24-12 at 02:45 PM.

  10. #10
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    I found this website to calculate it:

    http://eehouse.org/fixin/formfmu.php

    If I used my measures 46T x 16T - 16", suggest me a chainlengths of 48, so the links are 1/2" length I count the double, that's 96 chainlinks.
    Please can anyone confirm this is true?, I don't speak english very well and some terms confuse me, thanks.

  11. #11
    Veteran Racer TejanoTrackie's Avatar
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    Sí, usted está correcto.
    What, Me Worry? - Alfred E. Neuman

    Quote Originally Posted by Dcv View Post
    I'd like to think i have as much money as brains.

  12. #12
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    Quote Originally Posted by TejanoTrackie View Post
    Sí, usted está correcto.
    Gracias! (thanks)

  13. #13
    You gonna eat that? Doohickie's Avatar
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    Quote Originally Posted by heiwaz View Post
    And 102L do you consider a long chain?


    This mount my fixie:

    Chainring: 46T
    Cog: 16T
    Centro BB to centre rear wheel: 41cm (16")
    Half the chain ring and half the sprocket is covered with chain = 46/2 + 16/2 = 23 + 8 = 31.

    Distance between sprockets is 16", there are to lengths of chain that long = 32" and a chain link is 1/2", so you need 64 links for the distance between sprockets.

    31 + 64 = 95 links. You should be good with anything over 100.
    I stop for people / whose right of way I honor / but not for no one.



    Originally Posted by bragi "However, it's never a good idea to overgeneralize."

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