1、Compatibility: It is designed with a 10 to 51T range and is fully compatible with 12 speed systems such as for SX, for NX, for GX, and for XX1 EAGLE. This versatility provides cyclists with an extensive gear range suitable for a wide array of riding scenarios. 2、Lightweight Hollow Design: It features a sophisticated hollow design that effectively reduces weight, making your cycling experience less burdensome. This ingenious construction maintains a balance between strength and lightness, allowing you to tackle challenging rides with ease. 3、Premium Material: Crafted from a robust combination of aluminum alloy and steel, it is built to endure a variety of cycling conditions. Ride with the assurance that your cassette can withstand the demands of your adventures. 4、Tight Gear Spacing: The closely spaced teeth of the cassette ensure that the chain is positioned nearer to the gears, which secures smooth and silent shifting. This design reduces noise during gear changes, creating a more pleasant ride. 5、Easy Installation: Designed with user friendliness in mind, this cassette is simple to install, which means you can get back on the road quickly. Enjoy more time cycling and less time in the workshop, enhancing your overall cycling experience. Item Type: Bike Cassette Material: Aluminium Alloy, Steel 1 x Bike Cassette