SRAM XG1295 10-52 12s XD BLACK EAGLEThe new 10 52t, XG 1295 cassette gives riders more than ever before, with an unprecedented 520 percent range Stronger riders can increase chainring size for speed, without sacrificing climbing Redesigned structure provides improved strength while reducing weight for unparalleled shifting performance All new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performance XD Driver Body compatible