The Bicycle Chain Guide CG-02 is engineered with a clamp mount and anti-chain drop direct E-type adjustable feature, ensuring that the chain remains securely in place during rides. This design provides a smooth and uninterrupted cycling experience, particularly suitable for mountain and gravel bikes with a 1X system. The adjustable nature of the chain guide allows for a customized fit, enhancing both performance and efficiency on various terrains. Specifications: : Material: High-strength AL7075 Aluminium Alloy, CNC machined; nylon components Compatible Chainring Size: 26~50T Mounting Options: Clamp Mount & E Type Direct Mount Diameter Compatibility: 35mm to 31.8mm mount / E type mount Width: Adjustable from 31.8mm to 34.9mm Weight: Approximately 52g This product is perfect for cyclists who demand reliability and adaptability from their gear, ensuring optimal chain management across diverse cycling conditions. Color: Black Package Contents: 1 * chain guide+ 4 * washers+1* frame protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.