Advan RS-DF Progressive Wheel 18x9.5 +40 5x100 Dark Bronze Metalic Set of 4The RS DF is the first one piece mold form forged wheel to bear the Advan Racing RS name. It is based on the traditional RS 10 spoke design, creating a fusion of all RS elements such as the side cut on the RSII and the deep rim on the RS D. The DF in the name stands for deep forged. The RS DF Progressive adopted the same rim form as the GT 18 inch, a racing rim profile that can accept braking systems with up to 400mm rotors. The front rim is 34 mm