The new 10-52t, XG-1295 cassette gives riders more than ever before, with an unprecedented 520-percent rangeStronger riders can increase chainring size for speed, without sacrificing climbingRedesigned structure provides improved strength while reducing weight for unparalleled shifting performanceAll-new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performanceXD Driver Body compatible10-52t12sp10,12,14,16,18,21,24,28,32,36,42,52Black350gUPC/EAN/GTIN: 710845853067