Naked Citibike Card internals

Here is what the coil and chip inside of the new CitiBike cards look like…

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Here is a closeup of the chip…

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3 comments

    • bigjosh2

      Like most credit cards, the CitiBike cards are made of PVC plastic which dissolves in acetone (drugstore nail polish remover). I put the card on a plate and the poured some acetone over it. I covered it with another plate to hold the card flat and keep the acetone from evaporating. I refreshed the acetone about once an hour for a total of about 4 hours until all the plastic was gone.

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