OK. I understand this wheel is manufactured by a low pressure casting process. And it weighs somewhere around 25 pounds (not sure if this the 19x10 or 19x9 wheel). But saving 7 pounds per wheel of unsprung weight is great! It was my impression that a cast wheel was 1 piece. But I see that this wheel has chrome rivets. So this leads me to believe it might be 2 pieces. Which is correct? Thanks!