Model: CS-HG200-7-speed bicycle flywheel. Weight 0.25 kg. Flywheel teeth: 12-14-16-18-21-26-32T. .Material: High-strength alloy material, suitable for various harsh riding environments. Good corrosion resistance and heat resistance, long life. .Performance: The gear disc material is made of high-strength steel plate, which can provide a smooth and easy shifting experience even under load. The flywheel hub has clear specifications for the number of teeth, which plays the role of a precise guide wheel, making riding smoother. Application: Hollowing technology, easily reducing weight and making riding easier. Suitable for mountain bikes, touring bikes, and folding bikes. It is also one of the choices for gifts Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin