Product Description Technical Information:Mount:Center LockDiameter:140 mm, 160 mm, 180 mmDesign:2-pieceRotor Material:stainless steelSpider Material:aluminiumManufacturer Numbers:140 mm:00.5018.037,022160 mm:00.5018.037,023180 mm:00.5018.037,024Features:lightweight, 2-piece brake disc for mounting on hubs with center lock mountsturdy stainless steel discaluminium spiderrounded edges for safer installationContents:1 x SRAM Centerline X rounded rotor, Center LockOrder Together:Center Lock lockring Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com