Not sure about DA but I’ve seen a video of someone running Ultegra long cage on a 40T rear cassette without a wolf tooth. Add one in and you could presumably run even bigger.
I've used stock GS Ultegra with a 36T. I've not tried bigger than that although I think I have a 40T cassette the bike has been retired.
@hippy started
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Not sure about DA but I’ve seen a video of someone running Ultegra long cage on a 40T rear cassette without a wolf tooth. Add one in and you could presumably run even bigger.