Attention: Disk with "ASHIMA " is authentic product. Ai2 offers a staging 23% weight saving over the AiRoTor without impacting braking performance. AiRoTor technology taken to the limit ! 140mm/64g , 160mm/73g , 180mm/104g!! (without screw set) ASuper Light weight Excellent Heat Dissipation Fully Tested High grade SUS410 stainless steel Ground and Hardened to 47 HRC 6 screws (12g) included For international standard hub (6-Hole) Thickness: 1.8 mm Braking surface: 14mm Slice thickness: 1.75 mm Applicable: 140:CITY/ROAD 160:CITY/XC/CS/ROAD 180:CITY/XC/CS/ROAD Made in Taiwan Retail packaging. Shipping: Most items will be shipped through DHL Global Mail, USPS first class, Priority mail, USPS First Class Intl (International) or DHL (International). Item will be shipped 1~2 working days after payment confirmed.