- Premium Carbon Fiber Construction: Crafted from full carbon fiber, this water bottle cage is incredibly strong yet lightweight, weighing only 25±2g. Its non-deformable and corrosion-resistant properties ensure long-lasting performance, making it an ideal match for your bike. - Perfect Fit for Standard Bottles: Designed with a diameter of 2.83 inches (7.2cm), this cage accommodates standard water bottles ranging from 2.79 to 2.95 inches (7.1-7.5cm). Enjoy a secure fit for your hydration needs during any ride. - Easy Installation: The design allows for quick and effortless installation, enabling you to hold and remove your bottle with ease. The included screws securely fasten the cage to your bike frame, ensuring your bottle stays in place. Note: This holder is specifically designed to fit on the bicycle frame's seat tube or sloping down tube. - Versatile Compatibility: This carbon fiber water bottle cage is suitable for all types of bikes, including road bikes, mountain bikes, fixies, hybrids, and commuting bikes. Enhance your biking experience with a reliable hydration solution. - Included Tools for Convenience: Each purchase includes an Allen key for instant fitting, along with two screws per bottle cage for secure attachment to your bike frame. Enjoy a hassle-free setup and get back on the road quickly. Whether you're cycling on rugged mountain trails, commuting through the city, or enjoying a leisurely ride, this carbon fiber water bottle cage ensures your hydration is always within reach.