The SunRace 11v cassette 11-42 is a high-quality bicycle cassette. With 11 gears and a wide-ratio function, this cassette offers a smooth and efficient shifting experience. Made of durable materials like aluminum and Hi-Tensile Steel, it's built to last. Weighing just 465 grams, this cassette is also lightweight, ensuring optimal cycling performance. The metallic silver finish gives the cassette a stylish look. With milled holes for weight reduction, this cassette is perfect for cyclists who strive for speed and performance. Product specifications - Model: CSMS8 - Gears: 11 (wide ratio) - Function: Fluid Drive Plus - Toothing: 11-42T - Tooth combination: 11-13-15-17-19--21-24-28-32-36-42 - Material: - Spider, spacer and closing ring: Aluminum / black anodized - Sprockets: Hi-Tensile Steel - Finish: Metallic silver - Milling holes for weight reduction: Yes - Weight: 465 grams