As far as authenticity, you could check the serial # (under the BB) and confirm w/Specialized.

The setup on the left is the "repaired" version using the low-stack kit (note: your bar will have have a flat clamping section in the middle...and of course it's carbon).

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ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)