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  1. #1
    Join Date
    Oct 2003
    Location
    Calgary
    Posts
    130

    New 1x11 Installation Issue

    Helped a buddy install his new 1x11 drivetrain on his bike and ran into issue. Everything shifts fine through the 11-37 cogs, but absolutely refuses to move into the 46 tooth cog. Checked the high/low limit screws and the b-adjust screw and everything seems to be fine.

    The problem appears to be where the cable clamps in the derailleur. When moving from the 37 to 46 cog there isn't enough room for the derailleur to move up because the cable is bent at an extreme angle. Hard to describe but see the picture below.

    Click image for larger version. 

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    Any thoughts on how to solve this? Shimano M8000 SGS derailleur & SLX 11-46 cassette

    Couple of other pics of the drivetrain for reference

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    Click image for larger version. 

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  2. #2
    Join Date
    Jan 2008
    Location
    BC to CO
    Posts
    2,324
    Thats a direct mount derailleur hanger. Remove the extra B-linkage on the derailleur and mount it directly to the hanger.

  3. #3
    Join Date
    Jan 2009
    Location
    Park City
    Posts
    3,436
    Yup


    Sent from my iPhone using TGR Forums
    I rip the groomed on tele gear

  4. #4
    Join Date
    Oct 2003
    Location
    Calgary
    Posts
    130
    Thanks! That makes perfect sense. The direct mount looks like it should move the derailleur inboard enough to do the trick. All other installs that I've done didn't have a direct mount hanger. We'll pull the linkage out tomorrow and re-adjust the limit screws

    Any thoughts on how the chain length looks?

    Cheers,

    Tim

  5. #5
    Join Date
    Feb 2005
    Location
    North Vancouver/Whistler
    Posts
    11,897
    Chain looks short. It's already a bit taut for that cog

  6. #6
    Join Date
    Sep 2018
    Posts
    1,519

    New 1x11 Installation Issue

    Donít change the chain till you move the derailleur. Move then check.

  7. #7
    Join Date
    Jan 2008
    Location
    BC to CO
    Posts
    2,324
    To check the chain, remove the air from the shock, compress the suspension, wrap the chain around the 46, donít run the chain through the derailleur, warp the chain around the front chainring. Where the chain meets add 2 links.

  8. #8
    Join Date
    Mar 2008
    Location
    [a] Van [down by the river]
    Posts
    1,293
    Shimano's recommendation usually makes the chain look short... It's surprises me everytime I throw a new one on.

    ... chain looks fine, once you move the derailleur, my guess is all will be good.

  9. #9
    Join Date
    Oct 2003
    Location
    Calgary
    Posts
    130
    It always looks short to me but did the same on my bike 2 years ago and haven't had any issues with it. We used the "wrap + 2" method to get the chain length as shown above. Removing the b-link should give us some extra slack as well. Will post pics after we're done fixing it today.

  10. #10
    Join Date
    Oct 2003
    Location
    Calgary
    Posts
    130

    New 1x11 Installation Issue

    No pics but thanks to Dee Hubbís help everything is running smooth. Popped the b-link out, re-attached, adjusted the limit screws and shifts as smooth as butter.


    Sent from my iPhone using Tapatalk
    Last edited by Treycal; 06-21-2020 at 04:49 PM.

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