The CBR was originally designed for a show truck. The CBR has a slight concave with a slight step at the perimeter of the face. The current version comes with a flush cap. Forged billet center in either two or three piece construction. Size range is 17 through 22. Finishes are numerous ranging from all polished to brushed, powder coated and or cleared and many combinations. Minimum backspace is 4 inches. Call (310) 272-9026 for inquiries...