20x10.5 BBS CH-RII 5x120 ET35 Satin Black Center Platinum Lip SS Rim Prot WheelBBS has been flow forming wheels since 1996. Flow forming is a procedure that uses a continuous rotational motion with 3 hydraulic rollers and tremendous pressure at high temperatures to "Form" the inner rim area of the wheel. This process changes the mechanical properties of the cast rim area to increase strength, stiffness and impact over "stiffness to weight ratio" which can deliver very high level of performance at a cost that is much lower than a