The Shimano Ultegra CS-6700 Cassette 10-speed in silver is a high-quality cassette designed for serious cyclists. Made from durable steel, this cassette is built to last and withstand the rigours of regular use. It is compatible with 10-speed bikes and features Shimano's Hyperglide technology, which ensures smooth and efficient shifting.The cassette contains 10 steel gears and an aluminium cross, which is made from a single piece for added strength and durability. It also comes with a Hyperglide axle, which further enhances the cassette's performance. The computer-designed sprockets and teeth improve chain control during shifting, resulting in clear, smooth and quiet shifting.Whether you're a professional cyclist or a weekend warrior, the Shimano Ultegra CS-6700 Cassette 10-speed is an excellent choice for your bike. It is a reliable and high-performing cassette that will help you get the most out of your cycling experience.