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  1. #1
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    RD not "springing" back...

    My XT rear derailleur is no longer "springing" back to take up the slack in the chain. I'm guessing there's an internal spring or something that pulls the bottom pulley towards the back of the bike, right?

    Is this something I can easily adjust or fix, or is it time for a new RD? It's just over a year old...

    Advice appreciated.
    我的镀铬光泽的冰柱一样,我骑在镇附近在我的低骑手自行车

  2. #2
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    parktool.com/blog/repair-help/rear-derailler-adjustments-derailleur

    I think you are interested in the B screw adjustment.

  3. #3
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    There is a spring that pulls the cage backwards and keeps tension on the chain. This is kept in the bulge at the top jockey wheel. The spring either broken or has been dislodged from its pretensioning slots by the sounds of it. You'll need to take it back to where you got it from for fixing/warranty/or replacement depending on what the cause seems to be. If it was an online purchase you'd better just replace it as warranty is hard to get in those cases.
    Rimmer - "There's an old human saying - if you talk garbage, expect pain"

  4. #4
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    Quote Originally Posted by GuruAtma View Post
    My XT rear derailleur is no longer "springing" back to take up the slack in the chain. I'm guessing there's an internal spring or something that pulls the bottom pulley towards the back of the bike, right?

    Is this something I can easily adjust or fix, or is it time for a new RD? It's just over a year old...

    Advice appreciated.
    You can buy replacement spring kits...check Jensons....

    Also if you ride in salt (winter or sea) it builds up in the spring and slows them down...

    Grit can get in there also.

    Although one year is not the likely time frame....I ride in very difficult conditions winter etc....My RD is 5 years old (I replaced one spring at 3 years and the other one at 4 years.

  5. #5
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    Quote Originally Posted by GuruAtma View Post
    My XT rear derailleur is no longer "springing" back to take up the slack in the chain. I'm guessing there's an internal spring or something that pulls the bottom pulley towards the back of the bike, right?

    Is this something I can easily adjust or fix, or is it time for a new RD? It's just over a year old...

    Advice appreciated.
    Is it a Shadow version? They can get "sprung" and lock in a pulled back position. Just pull it forward again and you would be fine.
    mtbtires.com
    The trouble with common sense is it is no longer common

  6. #6
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    It is a shadow version, but it's shot. I took it to the LBS, and they'll do a warranty replacement for free

    So for today it's the commuter bike and a family bike ride with trailer and tag-a-long

    Thanks for the info
    我的镀铬光泽的冰柱一样,我骑在镇附近在我的低骑手自行车

  7. #7
    Dirty nerotic bike whore
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    did you recently put a new chain on and forget to cut it??

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