12 speed adjustment (chain length)- Mtbr.com
Results 1 to 5 of 5
  1. #1
    mtbr member
    Join Date
    May 2004

    12 speed adjustment (chain length)

    I got my Ibis Ripley LS built with Shimano 12 by my LBS. I have XT shifter and SLX casette (10-51T) and rear deraillure. It has a 32T front ring on XT cranks. It just doesn't shift right. On the stand the 51 clicks and in the mid gears shifting to a smaller ring doesn't shift or is really slow. I adjusted the cable tension, end adjustment screw all over from aligned to the marker to way off. I adjusted the low adjustment bolt all over. Things only get marginally better. My current guess is the chain is too short. I asked the mechanic and he said that he used all the links that came with the SLX chain. I saw a picture at:

    My top and bottom positions don't look like this picture. It looks like I have less links.

    Can someone tell me how many links you have for the above teeth counts?



  2. #2
    Trail Rider
    Reputation: mlx john's Avatar
    Join Date
    Mar 2010
    Can you post any pictures of your derailleur in those positions?
    2020 SC Hightower

  3. #3
    mtbr member
    Reputation: iliketexmex's Avatar
    Join Date
    Oct 2016
    Check your derailleur hanger with an alignment tool. If that is the issue you won’t ever get it dialed in until you straighten it out. It can cause problems even when the bend is not/barely visible.

  4. #4
    mtbr member
    Reputation: J.B. Weld's Avatar
    Join Date
    Aug 2012
    If the chain is too short it will negatively affect shifting only in the biggest cassette cog. I think your problem is something else.
    I brake for stinkbugs

  5. #5
    mtbr member
    Join Date
    Dec 2006
    This sounds like it could be a kinked cable. I see this quite often in the shop. In the lower gears, the kink is outside the housing. As soon as the damaged cable gets in to the housing, the shifting gets slow. A mechanic may reduce cable tension to get it to shift better in the mid/higher gears. When this is done, the derailleur doesn't hit the largest cog correctly and results in the clicking.
    Opinion, but it something I check first when these symptoms exist.

Similar Threads

  1. Replies: 3
    Last Post: 08-23-2019, 07:41 AM
  2. 12 Speet XT Chain/Cassette/Derailleur on Eagle 12 Speed Front Chain Ring
    By luckyguy19 in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 4
    Last Post: 08-15-2019, 02:59 PM
  3. Is XTR 12 speed compatible w/ Sunrace 12 speed?
    By endo_alley in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 2
    Last Post: 06-28-2019, 05:52 PM
  4. E*13 or Sram Eagle 12 speed cassette and Shimano 12 speed???
    By dvdslw45 in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 1
    Last Post: 03-26-2019, 10:29 AM
  5. 12:12 12/12/12
    By Guerdonian in forum Off Camber (off topic)
    Replies: 22
    Last Post: 12-13-2012, 06:09 AM

Members who have read this thread: 23

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts




© Copyright 2019 VerticalScope Inc. All rights reserved.