The Force XG1270 cassettes are designed and optimized for the next generation of electronic shifting and features Sram`s X-Range gearing technology for smooth precise shiftingX-Range gearing gives you more range and a smoother gear progression, so youre always in the right gearMini Cluster construction reduces weight and increases durabilityNow includes 10-36 option for even more range (must be used with the correct Force eTap AXS rear derailleur)Designed to work with XDR driver bodies10-33t12sp10,11,12,13,14,15,17,19,21,24,28,33SilverForceXDRUPC/EAN/GTIN: 710845865176