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  1. #1
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    1x11 Chain Length

    Recently fitted a smaller chain ring and worked out that I needed to shorten the chain by about 3 links. Now 3 not being possible (I am calling a link as much as goes around a single tooth) I decided that a bit too long would be better than a bit too short and took off 2 links.
    But it looks too long... any comments?
    First photo suspension down, 42T, second suspension up, 10T. 1x11 Chain Length-img_3039.jpg1x11 Chain Length-img_3038.jpg.

  2. #2
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    I'd be worried about going any shorter on a full suspension. You could pinch 2 links together and cycle the suspension to get an idea what it will look like.

  3. #3
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    ^ Yep, chain growth with the suspension is a very real issue.
    Rimmer - "There's an old human saying - if you talk garbage, expect pain"

  4. #4
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    I don't rattle.

  5. #5
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    Don't forget wide-narrow chain rings on a 1x11 setup.
    I imagine that half link will make a very expensive breaking noise...

  6. #6
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    Quote Originally Posted by Berkeley Mike View Post
    No, the 11-speed chainrings with their alternating big-little teeth require an even number of segments.

  7. #7
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    1x11 Chain Length-img_3040.jpg
    With another two links out, this is how the chain runs - too tight? (suspension fully down, 42T = longest chain path) Looking at this again I would say that to get the correct two links of slack, I would need to take out about 3.5 links so my question is: better to be 1.5 links slack -or- 0.5 links too tight?

  8. #8
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    I guess the question is, is there still any slack in the chain at longest chainpath? So, in that lower pic, can you still move the chain a bit, or is it completely tight?

    Sometimes, when the derailleur is that far up, even if you can still move the derailleur, that doesn't actually slacken the chain, in which case I'd say go longer, and perhaps add a chainstay mounted guide like the Bionicon C-guide.
    Pinkbike Product Picks at XXX in San Diego, California, United States - photo by RichardCunningham - Pinkbike

    If you can still slacken the chain by even a tiny bit I'd go with the shorter option. Long enough is long enough, as long as you're measuring with full chai growth from suspension. Just make sure you are at max chainlength, some suspension designs have an axle path that has the longest chain
    Eight somewhere in the middle of compression, not at full compression.

  9. #9
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    The reason to add the chainstay mounted guide if you go with a long chain, is that they slightly pull up on the chain, thereby taking up about that half link you need.

  10. #10
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    Does it shift properly like that? If that is the amount of slack in the entire range of travel, then it shouldn't hurt anything. (assuming it shifts properly). If not, add the links back in.


    Quote Originally Posted by StumpjumperUK View Post
    Click image for larger version. 

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    With another two links out, this is how the chain runs - too tight? (suspension fully down, 42T = longest chain path) Looking at this again I would say that to get the correct two links of slack, I would need to take out about 3.5 links so my question is: better to be 1.5 links slack -or- 0.5 links too tight?
    Riding.....

  11. #11
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    That shorter chain is too tight. The original was fine......or at least it looks better than with the shorter version.
    Rimmer - "There's an old human saying - if you talk garbage, expect pain"

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