Experience unparalleled performance and versatility with the Sunrace CSRX1 11-Speed Cassette, designed for road cyclists seeking reliable gear range and smooth shifting. Engineered with precision materials and innovative technology, this black 11-36t cassette offers the perfect blend of lightweight construction and wide-range gearing, making it ideal for climbing, sprinting, and mixed-terrain riding. Materials & Engineering: Constructed with high-grade aluminum components, the Sunrace CSRX1 features four large cogs mounted on two durable aluminum spiders, ensuring optimal strength-to-weight ratio. The aluminum lockring and spacers further reduce weight without sacrificing durability, providing enhanced ride confidence and longevity. At just 278g for the 28t version, this cassette combines lightweight design with robust performance for competitive and recreational cycling. Performance & Technology: The Super Fluid Drive (SFD) shift enhancing design delivers crisp, precise gear changes across the entire range. Compatible with HG 11-speed road freehub bodies, the CSRX1 ensures seamless integration with your existing wheel setup. The wide 11-36t gear range allows cyclists to conquer steep climbs and maintain high speeds on flatter terrains, making it an excellent choice for endurance rides and sportive events. Style & Use Case: Finished in sleek black, the Sunrace CSRX1 cassette complements any road bike aesthetic while providing high-performance functionality. Its wide gear ratio makes it versatile for various riding styles, from competitive road racing to long-distance endurance riding, providing the flexibility needed to adapt to diverse terrains and riding conditions. Innovative Features: - Super Fluid Drive (SFD) technology for enhanced shifting performance - Wide 11-36 tooth range for superior climbing ability and speed - Lightweight aluminum construction with durable design elements - Compatible with HG 11-speed road freehubs for easy upgrade Enhance your road b