I have used a centaur medium cage ( c 2005) 10 speed with that 12-30 cassette with no issues at all - I reckon you'll be fine. The specs for chain wrap are quite conservative in my experience. You'll need a longer chain.
@Jehannum started
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I have used a centaur medium cage ( c 2005) 10 speed with that 12-30 cassette with no issues at all - I reckon you'll be fine. The specs for chain wrap are quite conservative in my experience. You'll need a longer chain.