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  • I recently asking about getting a frame that had been powder-coated chased and faced. The guy seemed to think the same, he said he would chase the threads, but thought facing the shell was a bit unneccessary with a modern bb system

  • That's exactly the wrong way round - an older cartridge style BB is generally ok with that sort of treatment, a modern external, twin-shell design needs both faces against which it aligns to be parallel with one another.

    External BB=face the shell.

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