I don’t think the black is a plating, but that it is a paint. I don't know if it is a paint that has a special hardener in it to make it more durable (automotive paint is resistant to gas were spray paint isn't because of an additive) or if it is powder coated. Powder coating us used because it is a stronger finish. Some people say you can hit it with a
and it won't chip, I don't know if that is true or not. I do know that went I sandblasted a stock swing arm this summer the paint came off easy but then when I started blasting a swinger that had been powder coated it would barely come off. I only got about 1/4 of the powder coated swinger done in the time it took to due the painted one. The fame paint came off easy too, this made me thing that honda don't powder coat any of these parts and if they didn't powder coat these why would they do anything else?
Again, I don’t know much about this stuff and am hoping to learn more thought his thread.
1984 Yamaha YT 60 Tri Zinger(current project)
1983 Yamaha YTM 200 (rear suspension kit)..... long term project
2004 BMW R1150R
1972 Honda CT 70
2007 Lifan 110