Narrow Wide chainrings are important for 1X drivetrains. American made WickWerks has tried to up the ante with their new Z-Ring chainring. This new chainring is supposed to give you longer wear due to its mirror image tooth design. It is made in the USA out of 7075-T6 aluminum with a MIL Spec. Type 3 True Hard Anodized finish. Bike Rumor has a full article with all the details on this new chainring.