Rotor cranks

In theory, you could take a BB30 frame, insert a BB30 to BSA adapter then fit the BSA30 BB then fit Rotor 3D+/F cranks. I bet someone, somewhere has actually done this.

I have done this with my BMC BB30 frame and 3DF cranks. It works a treat. No issues with bearing wear since i put them in in March, and that includes 1000km or so of riding on the stupidly dusty roads of Botswana, Swaziland, and South Africa.