The SunRace cassette is an 11-speed cassette that's perfect for ATB / MTB bikes. With a gear ratio of 11-42T, this cassette offers a wide range of speeds for a smooth and efficient ride. The cassette is made of high-quality steel and has a black finish for a stylish look . With countersunk holes for weight reduction, this cassette weighs just 465 grams, making it an ideal choice for cyclists looking for a lightweight component. Features: - Number of gears: 11 - Cassette and sprocket ratio: 11-42T - Bike type: ATB / MTB - color black - Material: steel - Depth: 44.5 mm - Weight: 550 grams - Type: CSMS8 - Model: CSMS8 - Gears: 11 (wide ratio) - Function: Drive Fluid Plus - vertu: 11-42T -Dendering: 11-13-17-19-21-24-28-32-36-42 - Material: - spider, spacer and knoskrans: aluminum / black anodized - dental crowns in tension steel - Finish: Ed Zwart - free holes for weight reduction: yes - Weight: 465 grams