Feature: 1. Steel Material: This 428 sprocket is made of steel material, which is wearproof and sturdy to use. It is not easy to break, has high hardness for long term use, capable of withstanding the rigors of long rides. 2. 10 Tooth: The 10 tooth design of this sprocket allows for quicker acceleration, improved responsiveness during rides. Ideal for riders seeking to optimize their performance on varied terrains, ensuring you can tackle any challenge with confidence. 3. Easy to Install: The 10T chain sprocket is easy to install and disassemble, which is a wonderful replacement for your old or broken one, directly fitment. You can upgrade or replace your existing sprocket with minimal effort. 4. Compatibility: The 428 10T front sprocket inner diameter of 12x17mm, ensuring a nice fit with your 428 chain. This accurate design minimizes wear and maximizes compatibility. 5. What You Get: This package includes 5pcs 428 10T front sprockets. You'll have spare parts ready for replacements, ensuring you stay prepared and maintain optimal performance throughout your cycling adventures. Specification: Item Type: 428 10T Front Sprocket Material: Steel Inner Diameter Size: Approx. 12x17mm / 0.47x0.67in Package List: 5 x 428 10T Front Sprockets