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  1. It’s all serial number, just spaced apart so the cable guide won’t block it.

    G: Built by Giant in Taiwan

    23: 2023

    The rest is the bikes number in the batch.

  2. FormerlyMauchChunk on

    The GS2306 number has all of the digits aligned.

    The other number, 05679 – you can see the last two digits are slightly offset, as if a sequential stamp with rolling digits was used. That one is probably the serial #.

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