Which Groupset?

I think the article stated somewhere that you need 11s cranks but I can't find it now

edit:

What cranksets and cassettes is it compatible with? First off, only 11-speed right now (not 10-speed). So that might be a deal killer for some. Next, on the crankset standpoint, SRAM states that it’s compatible with “the same road drivetrain components as RED 22, Force 22, and Rival 22”. From there you’ve gotta work backwards and figure out if your crank is compatible with those components.