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  1. #1
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    New question here. XO crank creak from removable spider-to-arm... fix?

    Has anyone found a permanent fix for this creak?

    I finally isolated the increasingly loud creaking to my 6 month old XO crank's drive side removable ring-spider interface to the arm.

    I removed the cranks, removed the 3 small bolts holding the ring-spider arms onto the crank arm, and thoroughly cleaned the notched interface of the spider and crank arm (and cleaned the whole crank-set and repacked the near dry drive side GXP BB bearing).

    Reassembled so there was no drive direction slop in the notches of the spider-to-arm interface, torqued the 3 little torx head spider-to-arm interface bolts to 5 Nm, and rode.

    It was nice and quiet at first (yeah, finally identified!). But gradually over a few miles of climbing with minimal dust the creaking returned. Not yet as bad as before cleaning, but getting worse.

    I don't think it is dust or dirt related creak, just a slightly flexible interface design having only 3 small bolts to secure.

    I guess slapping grease around the interface notches may keep it quiet longer, but may require frequent regular cleaning as the grease dries.

    Any suggestion for a permanent fix?

    Thanks!

  2. #2
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    I have no experience with a removal spider SRAM crank but have found that greasing the splines of any splined interface keeps the creaks at bay for a good long while (also makes for easier installation/removal). This was a trick with old ISIS/Octalink cranks and I do it with 2 piece external cranks as well these days.

    Use a heavy weight marine grease and you should be good to go for a year or so hopefully. Was going to suggest some other possibilities but sounds like you've already troubleshot the regular creaks from around that area of the bike.

  3. #3
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    Did you ever get it to quiet down? Is 5Nm the spec torque for those three bolts?

  4. #4
    Workin for the weekend!
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    How would grease "dry"? Provided it's not water soluble, and you're not,washing it with solvents, the grease shouldn't ever dry.

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