Where to buy 2022 Giant TCR Advanced Pro headset (or bearings)?

I’m long overdue to replace the headset on my bike, but I don’t know where to source in the US. In the past, I’ve bought my Giant parts from the UK (https://www.giantbikespares.com/). Due to the current tariff situation, I would like to buy within the US. I’m also open to third party alternatives like Cane Creek. I just don’t know what size bearings I need :frowning: .

Bearing spec is 30.5x41.8x8 - 45°/45° upper & 34.1x46.9x7 - 45°/45° lower.

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Thank you! I was able to find some Enduro bearings.

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