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  1. #1
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    Pls help - chain catching in RD cage...

    the chain seems to be catching in the rear mech cage.

    It happens much more in the smaller cogs and when I ride it feels like the chain is jumping - but it isn't changing cogs..

    When I pedal with bike off ground to watch it - what happens is the chain seems to get caught for a second and the cage gets pulled forward a little - then it releases and hence it feels like the chain has jumped...

    Anyone had this ? know what it is ?

    I took the mech off my old bike & it worked fine on that -

    the cable tension is set fine and the chain shifts fine - so it's not cable tension

    Thanks..

  2. #2
    Listen to me powers2b's Avatar
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    The RD wheels may be too close to the cogs.
    There is a "B" screw that can be adjusted to prevent this.
    You could have a stiff chain link.
    Chain may be too long allowing RD wheels to fold back too far.

    Enjoy

  3. #3
    Airborne Titanium EricDJ's Avatar
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    Ultegra RD and Shimano chain?

  4. #4
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    No, it's an MTB shimano XT RD with Sram chain...

    sounds like it's one of the 3 possibilities mentioned by powers... will give that a go.

    thks !

  5. #5
    118AHC "Thunderbirds" 2372ighost's Avatar
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    I had the same problem on a highbred, turning the chain real slow while watching every link pass over the rollers, I identified a stiff link.

  6. #6
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    Yup - stiff link it was... brand new chain as well...! thanks for the good advice.

    Can I change the faulty link ? it's a Sram chain and I must admit I am having trouble using the chain tool to add links back in.

    The tool is easy to use to take a link out, but when I try to add a link the pin doesn't click back like it does when it clicks out, so you have to see by eye when to stop pushing it through and always where I joined the link it is very stiff.

    am I doing something wrong ?

  7. #7
    2_i
    2_i is offline
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    Quote Originally Posted by Riles
    Can I change the faulty link ? it's a Sram chain and I must admit I am having trouble using the chain tool to add links back in.

    The tool is easy to use to take a link out, but when I try to add a link the pin doesn't click back like it does when it clicks out, so you have to see by eye when to stop pushing it through and always where I joined the link it is very stiff.
    You should be able to losen the link with your hands by flexing the chain in the link area side-to-side. It is not a big deal. Just repeat it until the link gets reasonably loose.

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