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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.

  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 01:45 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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