It has recently come to my attention that I can get a NW oval front ring that should fit my BB30 rotor crankset, and am now actively looking at a 1x conversion.

I have a DA9070 full group with ceramic speeds OSPW cage. I read on ceramic speed homepage that it will likely not go above 11-28 cassettes, but i wonder if this depends on setup being either 2x or 1x. I have written CS and not received an answer. Does anyone know?

Bonus question for other Di2 1x riders. What do you do with the left shifters, cables etc? Just leave it there?

Thanks!