Sram GX XG-1275 Eagle 12s 10-50T 2021 Cassette Sprocket Ride anywhere with the XG-1275 cassette that gives you the ability to take full advantage of all the gears at your disposal. Fast on the flat, comfortable uphill, you can always choose the pace that you will find best suited to every situation, a guarantee that only Eagle single-chain drivetrains can be offered. Features 12 speeds. X-Glide 2 technology increases shifting performance as well as chain retention. Compatible with all levels of Eagle components. Compatible with XD bodice. Teeth 10-50: 10-12-14-16-18-21-24-28-32-36-42-50 (real weight 449 g). Full Pin ™ Technologies Full Pin technology allows the 12 steel sprockets of the cassette to be joined together using 136 high-strength stainless steel pins. This allows to obtain an extremely light and resistant sprocket set, equipped with the incredible range of ratios that only Sram is able to offer. The open design similar to the X-Dome cassettes allows to reduce the accumulation of mud while ensuring a constant shifting and a long life of the individual components. X-Glide 2 X-Glide 2 is the new version of Sram's X-Glide technology, optimized for 12-speed sprockets. Gives speed, precision and strength to shifting performance on all sprockets, while simultaneously increasing chain retention on the larger sprockets. The indicated toothing could be subject to variations by the manufacturer even without prior notice.