The RX 10-speed cassette is a high-quality cassette for racing bikes. With its aluminum spiders, locks and spacers, this cassette offers durability and reliability. The cassette has an 11-25T gear ratio, ensuring smooth, precise circuits. The finish is available in black chrome or metallic silver, making it an elegant addition to any racing bike. Weighing just 236 g, this cassette is lightweight and contributes to optimum performance on the road. Product specifications: - Brand: SunRace - Model: CSRX0 - Number of speeds: 10 speeds -Resistance: 11-25T (11-12-14-14-15-17-19-21-23-25) - Finish: metallic - Functions: super smooth drive - Material gears: high-tensile steel - Locking: steel - Weight: 236 grams