Experience smooth and precise shifting performance with the Shimano CS-R7101 105 Cassette, designed for both Di2 and mechanical shifting systems. Weighing in at a lightweight 284g, this 12-speed cassette offers a wide gear range for versatile riding options. The Hyperglide+ technology ensures seamless gear changes, enhancing your overall cycling experience. The cassette features a durable construction for long-lasting performance, making it a reliable choice for avid cyclists. With a sleek design and compatibility with both electronic and manual shifting setups, the Shimano CS-R7101 105 Cassette is a high-quality component that will elevate your ride to the next level.