Cassette model 10-48T or 10-50T or 10-52T Made from Chromoly steel alloy + 7075-T651 Aluminum Alloy (largest cog) Made with CNC milling Cassette speeds 12-speed Weight, grams 340±2% (10-48T), 343±2% (10-50T), 357±2% (10-52T) Cassette gears 10-12-14-16-18-21-24-28-32-36-42-48 (10-48T), 10-12-14-16-18-21-24-28-32-36-42-50 (10-50T), 10-12-14-16-18-21-24-28-32-37-44-52 (10-52T) Compatible rear derailleurs SRAM 12-speed: XX1 Eagle, X01 Eagle, GX Eagle, NX Eagle, XX1 AXS, X01 AXS, GX AXS. Not compatible with KMC and YBN chains! Freehub compatibility SRAM XD E-bike compatible No Color Black or Blue or Gold or Green or Orange or Red or Silver or Violet