[SOLVED] New Rotor crank stuck in Bottom Bracket

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  • Took a 105 Chainset out, put the new Aldhu24 chainset in a couple of cm and now it's stuck. Now want to take it out and it won't budge.

    It's all compatible on paper - just a case of tolerances? Bikeradar notes BB86 as having less stringent tolerances.
    I also didn't grease the axle, error?

    I've tried applying some WD40 in there, tapping with a mallet and it just wants to pull out the inner part of the BB (which I assume I'll have re-press now (?) but don't have the tools).

    Toying with sticking another chainset into the NDS and trying to tap it out from the other side(?).

  • Grease and force. Normally use a rubber mallet or something to get it in. (ooh nurse)

    You sure you have the right bearings?

  • Canyon confirmed the Rotor Aldhu24 for BB86 was the one - what came out and this are both 24mm axles.

    I'm going to try and take off the PM and try and tap the axle out from the other side.

  • Any reason why completing the installation would be a bad idea? Could just grease up the spindle and tap it all the way through.

  • Not sure if the bottom bracket needs pressing but suspect continuing will push the middle bit back into place.

    The p2m is off so may give that a go.

  • Thanks both for the added confidence, @hippy was right with grease and force. Much happier using the mallet without the p2m mounted!

    I do however need to re-press the Drive Side bearings. First bike that isn't BSA - fun.

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[SOLVED] New Rotor crank stuck in Bottom Bracket

Posted by Avatar for spinnnout @spinnnout

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