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  1. #1
    187
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    Anyone else blowing through derailler cables?

    Anyone else have an issue with rapidly going through derailler cables? I ride an Intense SS as a mini DH bike and am using an XT Shadow long cage derailler on a 1x9 setup. Every few rides the cable frays and breaks between where the cable enters the derailler and where the cable is secured to the derailler.

    My theory is that the spring in the XT is not strong enough to keep constant tension on the cable in rough terrain and the weight of the bouncing derailler becomes too much and the cable breaks.

    Anyone else experience this?

  2. #2
    Tool
    Reputation: Pedalphile's Avatar
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    Are you ending up with frayed cable sticking out of the derailluer cable clamp, or is it cut off cleanly there? If it's breaking off at the clamp, it's probably not seated properly in the channel the clamp has to accommodate the cable. If it's the former, I'm unsure of the cause, but would make sure that the cable is properly routed.

    Good luck,
    Pete
    I can barely get my mouth around it.

  3. #3
    Nouveau Retrogrouch SuperModerator
    Reputation: shiggy's Avatar
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    Quote Originally Posted by 187 View Post
    Anyone else have an issue with rapidly going through derailler cables? I ride an Intense SS as a mini DH bike and am using an XT Shadow long cage derailler on a 1x9 setup. Every few rides the cable frays and breaks between where the cable enters the derailler and where the cable is secured to the derailler.

    My theory is that the spring in the XT is not strong enough to keep constant tension on the cable in rough terrain and the weight of the bouncing derailler becomes too much and the cable breaks.

    Anyone else experience this?
    The cable angle(s) on the XT Shadow is extreme and can cause early cable failure.
    mtbtires.com
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  4. #4
    DIY all the way
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    Clarks pre lubed cable is known to sort that issue.

    That they're relatively cheap as well does not make them less attractive.


    Magura

  5. #5
    usually cranky
    Reputation: b-kul's Avatar
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    weird, i run the exact same drivetrain and have not had that problem for around the year i have owned it. then again you probably stress it more than me. but looking at mine what shiggy said makes sense.

  6. #6
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    I have seen this only once or twice from a few bikes in years as a wrench in a shop.

    Usually it is One of theses reason

    The angle on your rear loop of cable housing is too long or too short.

    The B tension is set wayyyyy off from someone playing with it.

    The little tab on the der pinch bolt has a burr or is not set right (look at tech docs at shimano)

    Bad routing of the frame combined with specific der.

    Surf around here for some details on how to
    http://www.sheldonbrown.com/

    The one that was not set up based we installed a rollamajig

    The rest were solved playing with the cable housing and b tension and the pinch bolt.

    PM a pic or post of the rear end of the bike if none of those apply and I can visualize the routing.

    KIN
    Yes its retro but IT WORKS!

    8 Speed is great and V-Brakes rock!

    Ex-wrench...have a Question just ask!

  7. #7
    187
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    I'll post up a pic tomorrow. I don't think there is an issue with cable routing but there could be an issue with the alignment of the cable clamp. The cable is frayed however, it is not cut cleanly at the clamp.

    Given that a long cage derailler typically wouldn't be used with a 1x9 setup, anyone think that may be a contributing factor? I run the same derailler on my xc bike without issue but it doesn't see the same abuse as the SS.

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