As I stated in another thread, I was recently advised by a well known suspension tuning shop that while I can get either a custom tuned 36 Kashima or black ano fork from them (I wanted the Performance Elite), they have seen severe wear problems with the black ano often within a year, that they do not see with the Kashima. I had never heard this comment before. In the other thread, some subsequent posters agreed with this comment.
It's been pretty robust in my experience. On some of the scratched stanchions I've seen it's like it's slightly chipped along the scratch. I haven't ever seen it continue beyond that afterward, and I've seen a lot of riders run with scratched stanchions, Kashima or not, without further issue. It's good to remove any raised edges.
A thick build of hard anodizing will also chip similar to Kashima. IDK the build thickness used by FOX on their black stanchions. We used a lot of various thicknesses of hard anodizing at work, up to 0.003" IIRC. It's very tough and scratch resistant as the hard coating is essentially sapphire.
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