12-speed, sprockets 10 - 38 teeth steel, sprocket 44 teeth aluminum, suitable for XDR freehub body, nickel chrome-plated, silver / black, weight: 373 g Number of teeth 10, 11, 13, 15, 17, 19, 21, 24, 28, 32, 38, 44 Item type Freehub body XDR Large sprocket 44 T. Main color silver Small sprocket 10 T. Secondary color black Replaceable sprocket no System compatibility 12-speed The 440% range of the SRAM XPLR XG1271 cassette ensures smooth shifting on rough climbs and tight jumps when it's time to accelerate on the asphalt. The shifting functions on each sprocket are optimized for electronic shifting. X-Range technology offers a wider range and smooth shifting performance 440% range, ideal for 1x gravel setups For use with XPLR 1x rear derailleurs Compatible with Flattop chains Compatible with XDR driver body MINI CLUSTER technology for light weight and durability 10-44t: 10,11,13,15,17,19,21,24,28,32,38,44 SRAM Article number: 727004 EAN code: 710845868986 Supplier number: 00.2418.118.000 Retail packaging: Yes