Wow, shifting on narrow wide chainrings, that’s pretty good. Just trying to reuse the perfectly good crank and there seems to be plenty of reasonably priced 6000/7000/8000 series rings. With their funky asym. pattern you’re locked into a small subset of options. On a side note, does anyone have thoughts on durability on stated outer rings (36t or 38t) particularly road miles. Are they just as durable as their aluminum road counterparts? Thank you everyone.