Best Airtag holder?

I read somewhere that the bike metal would work as a Faraday cage and the AirTag won't work. Do you get a good signal?
While there is metal around the AirTag, such as the motor and the aluminum shield underneath, the frame that it's attached to inside is carbon. I get a decent signal, I think. It may not be as strong as it was when the AirTag was outside, but I can accept that as a trade for it being hidden and difficult to get to.
 
https://ride.lezyne.com/collections...essories2022&utm_id=airtagaccessories20220830

Image 8-30-22 at 3.14 AM.jpeg
 
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