Bicycle Chain Protector Aluminium Alloy Single Disc Chain Guide Lightweight Bicycle Chain Tensioner Adjustable for Road Bike MTB Features: 1.Improved Chain Stability: Our bike chain stabilizer ensures that your chain stays securely in place, preventing derailments and providing a smoother riding experience. Say goodbye to chain drops and enjoy a more stable ride as the chain stays securely on the sprocket. 2.Aluminum Alloy + High-Strength Nylon Materials: Crafted with a combination of durable aluminum alloy and high-strength nylon materials, our bike chain guide is built to withstand the demands of rugged terrains and challenging riding conditions. It offers exceptional durability and toughness, ensuring long-lasting performance even in the most demanding environments. 3.Hollow Design for Lightweight Advantage: The bike chain guard features a hollow design that significantly reduces weight without compromising on strength. Enjoy the benefits of a lightweight chain guide that doesn't weigh you down during your rides, allowing for enhanced agility and maneuverability on the trails. 4.Multiple Adjustable Positions: Our bicycle chain protector is designed with multiple adjustable positions, allowing for precise customization based on different chainring and chain combinations. Achieve the optimal chain guide effect by fine-tuning the position to match your specific setup, ensuring smooth and reliable chain engagement throughout your ride. 5.Easy Installation: Installing and removing our single disc chain guide is a breeze. With a user-friendly design, it can be easily mounted and dismounted, providing hassle-free maintenance and replacement options. Spend less time on installation and more time on the trails, thanks to the convenience of our easy-to-use chain guide system. Specification: Origin: Mainland China Main Material: Aluminum Alloy + Nylon Color: Black Size: Approx. 70mm (2.76in) x 68mm (2.68in) x 50mm (1.97in) Net Weight: About 45g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 1x Chain Guide .