Features: New tooth profile with Dynamic Chain Engagementand. Better chain engagement for greater chain retention. Special gear tooth profile designed for MTB riding use. The smoother ride, even on bumpy terrain. Lighter and harder design and Easy exchangeable ceiling light by direct mounting and only one key version. Specification: Material: Aluminum alloy Heat treatment: T6 Manufacturing process: 3D Use: MTB Compatible chain: 12-speed Mounting system: Direct mount List compatible: M6100 or M7100 or 8100 or 9100 Weight: 32T - 68g Listings: 1xchainring Notes: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. tee of light. 2.Please allow slight manual measurement deviation for the data. Made of high quality aluminum alloy, which is strong and durable. It is not easily damaged and deformed and ensures strong strength for durable use. Easy to install and fits the bike perfectly. It has a compact and simple appearance and greatly improves your speed!. CNC precision machining and electroplating anodic oxidation, maintain smooth surface, bright color, non-faded resistance and corrosion.. Narrow wide tooth design greatly increases the contact area with greatly, so that each of the teeth can be fully inserted into the chain, ensure ultimate chain retention, increase the service life and reduces friction and noise. Electroplating polishing design: The surface of the platter is electroplated and polished, which is not prone to scratches and increases the appearance.