Enhance your cycling performance with the 12 Speed XDR Road Bike Cassette from KTKEET. Crafted from 7075 aluminum alloy, CNC processed for durability and lightness. Available in sizes 10-28T, 10-33T, 10-36T, and 10-44T, ensuring a smooth ride with optimal gear ratios. Compatible with Sram RED ETAP AXS, this cassette offers easy installation without the need for transmission adjustments.