Not sure what to say. Mine are as shiny gloss black in the barrels as they are on the wheel face. Don't get me wrong the machining isn't as fine and smooth but the finish is the same. In fact all of my recent aluminum Ford wheels have been fully finished (2 F150’s, 2 Edge’s, 2 Escape’s, 2 Lincoln’s and now this Exploder), some were clear coated. Even the ones that say made on China on the inside of the rim.
I clean the barrels every time I wash it, you’ve got to when the wheels are black or it just looks sad.