Feature: 1. Bicycle chainring are made of a sturdy chrome molybdenum steel structure with the proper thickness to ensure that they do not bend. 2. Strict quality control and quality assurance, high safety factor, can be used with peace of mind. 3. Easy to install and simple to detach, small size, light weight, convenient and practical. 4. Ergonomic round shape effectively utilizes punching to generate more yarn traction, reduces the load and fatigue of the legs or knees, and ensures a smooth ride. 5. Unique toothed design increases the contact area of the chain, improves the grip and reduces the sagging of the chain, allowing you to easily navigate the bumpy road. Specification: Item Type: Bicycle Chainring Material: Chrome Molybdenum Steel Application: Universal for Four-jaw Variable Speed Chainring Number of Teeth: 22T Compatible: 8/9 S Weight: Approx.42g/1.5oz Product Size: Outer Diameter: Approx. 95mm/3.7in, Aperture: Approx. 64mm/2.5in. Package List: 1 x Bicycle Chainring