Hey, as I understand bump map has two colors white and black mainly ?
I created bump map and I have some places where white is too intense.

You can see that at the fork end its too white/reflective.
And same goes for the tire, Its too much to create geometry so I did bump instead.
But white is too white and black is to black. (You can see in same rendered picture)

Third, I think the way I'm doing bump map is bad. Because of shader structure I created and what I want..


I want to imitate scratched surface, but at the same time its like cut color.
So I used layered shader. First is color (yellow) then bump that goes to blins "bump". And third is scratched parts, that goes to blins "transparency"