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  1. #1
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    XT Clutch Failure or Adjustment Issue?

    I have a Cannondale Trigger 29er1 that came with an XT clutch rear derailleur, I think believe it's an XT M786. For the first few months it has worked great, the clutch feature has been awesome. Recently I started to get some chain slap. I found that there was some front to rear play in the cage before the resistance of the clutch kicked in. I opened it up and tightened the adjustment a little bit which seemed to remedy that, for a few miles of riding. It feels like the clutch still works, but you can move the cage forward a 1/4-3/8" before the resistance of the clutch is felt. Do these need frequent adjustment or do I have an issue with this thing that I should get warrantied?

  2. #2
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    After some further observation it seems there is play in the P-Pivot before there is any spring tension or clutch action. I switched off the clutch and the same play still exists before there is spring tension against the cage, the same play is there with the clutch on. Also if I shift from the smaller rear cogs to the largest (36 tooth) the clutch seems to work. However, if I shift down the play is there again.

    Any ideas?

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