• Firstly, some references for you:

    The obvious difference between BB30 and BB86, is that with BB30 the bearings are pressed directly into the frame; with BB86 the bearings are pressed into cups and the cups are pressed into the frame.

    Also BB30 is natively for 30mm diameter spindles and BB86 for 24mm spindles.

    The X-Tools tool will install both as it has adaptors to cope with the different internal diameters of the bearings and the cups.

    But you will need both the other tools to remove them: not only are the diameters different, but with BB86 the shell guides the tool; with BB30 there is no guide for the tool.

    Personally, I find Park Tool overpriced for what they are: Cyclus are my "nice but pricey" choice.

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