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  1. No, that frame isn’t UDH compatible. You can run 12 speed XPLR or Eagle derailleurs, but no 13 speed or transmission.

  2. What’s your goal with the upgrade?

    If you don’t have UHD, you are limited to 12 speed for SRAM gravel group sets. I’m doing an upgrade now and since I don’t have UHD, I’m mixing the last gen rear derailleur with the newest gen shifters, similar to [this](https://aroundthecycle.com/products/new-sram-rival-axs-xplr-groupset-kit-1×12-xg-1251-10-44t-gravel-all-road-e1-d1?variant=51109586993471&country=US&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_campaign=gs-2019-06-26&utm_source=google&utm_medium=smart_campaign&gad_source=1&gad_campaignid=17507700843&gbraid=0AAAAADlOaY9OoxXqzgEWhI7Eu8hpuhvln&gclid=Cj0KCQjwgKjHBhChARIsAPJR3xfou-aEX2IgxoHbIjU8sC0gsnZlg5JBzZy19bRiJ5cpgRT7Jw4BlwcaAiC0EALw_wcB) non-UHD packaged group set. That way I get the better shifters and brakes, there really doesn’t seem to be an improvement with the newest gen rear derailleur anyways.

    If your goal is getting the widest gear range possible on 1x, then mixing in Eagle would make sense.

    TL;DR: you can mix and match SRAM group set components to get the latest tech while sticking with the last gen rear derailleur.

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