Experience top-tier performance with the Shimano CS-R9100 Dura-Ace Cassette, designed for 11-speed drivetrains. Weighing in at a mere 175 grams, this cassette offers a perfect balance of lightweight construction and durability. The Hyperglide technology ensures smooth and precise shifting, allowing you to effortlessly tackle any terrain. With a wide range of gearing options, including 11-25T, 11-28T, and 12-25T, you can customize your setup to suit your riding style. The rigid aluminum carrier enhances power transfer, while the nickel-plated finish adds a sleek aesthetic to your bike. Whether you're a competitive racer or a dedicated enthusiast, the Shimano CS-R9100 Dura-Ace Cassette delivers unparalleled performance and reliability for your cycling adventures.