The Shimano SLX M7100 12-speed cassette is an excellent choice for avid mountain bikers and touring riders. Featuring XTR technology and the new Hyperglide+ technology, this cassette offers direct and smooth shifting. Whether you're pedaling hard or riding in poor conditions, you can shift smoothly and quickly between gears. The cassette is mounted on Shimano's MicroSpline body, further expanding the range of possible gears. With a sleek design and durable materials, this cassette is an excellent addition to your cycling gear. Product specifications - Brand: Shimano - Shimano group: Shimano - Group: Deore XT - Shimano group code: M7100 - Shimano model code: CS-M7100-12 - Number of gears: 12 speed - Shimano type: HG - Gear ratio: 10-45T - Teeth: 10-12-14-16-18-21-24-28-32-36-40-45 - Weight: 513 g (10-45 teeth), 534 g (10-51 teeth)