The new 10-52t, XG-1295 cassette gives riders more than ever before, with an unprecedented 520-percent range. For a little extra to avoid the hike-a-bike, a little more in the “spin to win” game, the XG-1295 cassette also allows stronger riders to increase their chainring size if they want. Also available in the 10-50t configuration! Details: Speed: 12 speed Gearing: 10-50t, 10-52t Technology (Cassette): XG Cog Sizes 10-50t: 10,12,14,16,18,21,24,28,32,36,42,50 Cog Sizes 10-52t: 10,12,14,16,18,21,24,28,32,36,42,52 Weight (10-50t): 352 g (10-52t): 366 g Model #: Black/Grey 10-50t: CS-XG-1295-A1 Black/Grey: 10-52t: CS-XG-1295-B1 Black 10-50t: CS-XG-1295-A3 Compatibility: Chain: All SRAM Eagle 12-speed chains Freehub: XD Driver Rear derailleur (10-50t): All SRAM Eagle rear derailleurs Rear derailleur (10-52t): All SRAM Eagle 52t rear derailleurs