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  • What would be the cause of someone stripping out the splines on a Hollowtech crankset?

    This happened to my clubmate today. Halfords installed it (4 weeks ago) but I can't see how you'd get to that point without noticing a lot of play.

  • If they didn't tighten the Allen bolts correctly, just the compression bolt thingy?

    (I take it you mean hollowtech 2, if hollowtech 1 then possible they misaligned the splines then torqued it up misaligned)

  • yeah HTII.

    Interestingly the plastic compression cap was missing but AFAIK that's only for compression prior to tightening the bolts. In theory you could take it off once the bolts are tight.

    waits to be told I'm completely wrong

    Anyway, bit of a shitter because he had to walk to the nearest station and take it up with Halfords as to why his Ultegra cranks have been destroyed.

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