Results 1 to 3 of 3

Thread: Chain Length

  1. #1
    mtbr member
    Reputation:
    Join Date
    Apr 2005
    Posts
    1

    Cool-blue Rhythm Chain Length

    I just replaced my rear derailer. Deore LX M570 with a Deore LX M580. LBS said it was the same derailer, just a longer cage. Also am replacing the chain. How many more links should I add to compensate for the extra cage length? Is there a website that has pictures of what the derailer should look like on a certain gear/chainring combination. Or is there some rule of thumb?

    Thanks in advance.

  2. #2
    mtbr member
    Reputation: logbiter's Avatar
    Join Date
    Dec 2003
    Posts
    2,819
    http://www.parktool.com/repair_help/...ex.shtml#chain

    there ya go
    Quote Originally Posted by KJN185
    I just replaced my rear derailer. Deore LX M570 with a Deore LX M580. LBS said it was the same derailer, just a longer cage. Also am replacing the chain. How many more links should I add to compensate for the extra cage length? Is there a website that has pictures of what the derailer should look like on a certain gear/chainring combination. Or is there some rule of thumb?

    Thanks in advance.
    [SIZE=1][/SIZE]

  3. #3
    Do It Yourself
    Reputation: Homebrew's Avatar
    Join Date
    Jan 2004
    Posts
    5,722
    A longer cage derailleur shouldn't require any additional chain length. It just adds more chain wrap capacity so you can maintian tension over a larger gear range. So if your chain was correctly sized before, the new one should be the same. It's best to just do the big ring, big cog, no derailleur, add 1" method to be sure.
    Long Live Long Rides

Similar Threads

  1. Determining the chain length at borderline?
    By PiroChu in forum Drivetrain - shifters, derailleurs, cranks
    Replies: 3
    Last Post: 11-15-2004, 07:28 PM
  2. Epic chain length
    By Jackie in forum Specialized
    Replies: 9
    Last Post: 11-11-2004, 03:08 PM
  3. Fiddling with chain length
    By SpinWheelz in forum Singlespeed
    Replies: 3
    Last Post: 11-01-2004, 02:58 PM
  4. Quick and Easy Formula for chain length?
    By gspot in forum Singlespeed
    Replies: 5
    Last Post: 11-01-2004, 07:35 AM
  5. Paging Kman: Fuel 100 chain length??
    By CODMAN in forum Weight Weenies
    Replies: 3
    Last Post: 05-10-2004, 01:07 PM

Posting Permissions

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