This is one of several problems with the KMC wheels. They're marketed by a company called Wheelpros. They import very stylish but low-dollar wheels from China. They have many styles but they're constantly introducing new one's and dumping the one's that don't sell as well. That makes it tough if you ever need to replace a dinged or bent one.
They're very cheaply made and the finish is poor. Lasts a year or so. And most of their truck wheels do not meet the OEM load standards.