• What do your current rotors look like in regards to wear? If the brake track is worn where it should be then all good.

  • The wear does extend down the arms past the rotors by a couple of mm.

    This partially backs up the theory, but I can't find anything definitive.

  • Is there an unworn bit around the edge, if not I wouldn't worry.

  • I’ve ran bb5/7s with all sorts of rotors including centrelock Shimano and haven’t noticed any effect on brake performance.

    I’d say wear down the arms a bit is better than adapter faff anyway.

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