Thanks. The wheels aren't really that clean at all. Before taking the pictures, I went to one of those $5 U-Scrub It car washes. While cleaning the entire car, I used the wheel/tire cleaner, pressure washed them clean, used the foaming brush, pressure washed again, wax setting, and then spot-free rinse. To be honest, it's mostly in the lighting. The shadows hide all the remaining brake dust that's in all the radial nooks. I like the look of these wheels, but absolutely I hate the mainetance they require. These things were designed by either a sadist or a masochist.