Brand: IIIPRO Specifications: diameter 160mm, brake pad thickness 1.8mm Diameter 180mm brake pad thickness 2mm (Middle 3mm) Weight: 160mm 102g/ 180mm 147g/ 203mm 185g Color: Blue/ Golden/ Black/ Red/ Purple Material: High Tensile Steel + Aluminum Alloy. Technology: All CNC engraving and Milling, Anodizing, Laser Marking Note: Because the color of different batches may be a little different, if you care about this, please send us a message.