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  • Thank you. I will check that out. I have a spare seatpost. But no, upon reflection, it creaks when I am out of the saddle. Sorry, that reply was to user80021.

    I bought a new carbon bike frame and had the old one swapped out for "bottom bracket creaks" in the past, but subsequently thought that the creaks they were probably caused by loose chain rings. This frame is old but I have not bashed it like that last one.

    The chain has a "missing link" since I failed to install it using the standard Shimano method. I wonder if the chain is to blame.

    I could swap the cranks (and pedals) with my other bike.

    I hate compact cranks since I spend so much time in my highest gear (which means more stress on the freehub and their demise). The crankset on my other bike is not compact. I hope it is that so I can have an excuse to purchase another crankset.

    The quick release idea is interesting. I will tighten it up before I ride home.

  • Don't just tighten it up, take it out, clean it and also clean the faces of the frame where it attaches (the inside and outside of the dropouts).

  • If it creaks in the same place with each rotation of the cranks, its unlikely to be your chain. The bad link will be various ways around the system each time the cranks turn, sometimes not under load so the noise would be irregular with your pedalling.
    Quite a few people in the cannondale thread thought they had BB30 creaking issues which ended up being resolved by using better Quick Release skewers

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