Only the Harley logo is one point on the solid black …
If you think about it, it contains red flames …
If you look closely, the solid black of the base is gradation to gunmetal.
The number one logo on the top surface is lightly blown metallic and toned down with candy black.
Flames red is Candy-Black, Smoke and black colors are layered from above, so it disappears at the viewing angle.