TPE17: KMC goes to 12 speed with Gold Ti-Nitride chains

Was going to ask the same. What other 12 speed drivetrains are there, as generically described in the article?

Agreed, there doesn’t seem to be enough attention to this point with TiNi in general. In the top pic above, with black/gold color scheme, it appears that the rollers are coated, but the pins and inner plates aren’t. Then, in the bottom pic, the pins are coated (although we can’t tell if that was done pre, or post, assembly) but the rollers aren’t. In addition to that point, I have always wanted to know what the actual lifespan of TiNi coatings are on the inner contact surfaces. I mean, sure, it is hard and wear resistant, but it is thin as h311 too, and it certainly won’t last forever when subjected to abrasive grit. So, do you end up with a super hard 1-2 micron layer that still only lasts 2 rides on the inside wear surfaces, or does it actually genuinely extend the lifespan of a chain?

The coating on the non-contact surfaces will make a difference though, as dirt stuck to the sides will eventually be flung or rubbed onto other parts of the drivetrain the chain contacts.