BBS CH-RII 21x10.5 5x120 ET35 Satin Black Center Platinum Lip SS Rim Prot Wheel -82mm PFS/Clip Req

One Piece Counter Pressure Cast Wheel with Flow-formed rim - Back-milled spoke area - Featuring stainless steel rim protector - Weight optimized by FEM analysis
 
PERFORMANCE LINE
BBS 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 forged wheel.