Lightweight and convenient: This road bike bottle cage uses a blend of 40% carbon fiber and 60% glass fiber, making it lightweight and easy to carry. It is designed to provide convenient access to water during rides. Durable and reliable: Built with sturdy materials, this bottle cage is designed to withstand a variety of outdoor conditions, delivering longlasting durability and dependable performance. Secure and easy to use: The inner diameter is approximately 7274 cm, enabling secure fitting for standard bottles or cups. The design allows for effortless bottle insertion and removal, providing a hassle experience for cyclists. Compatibility and performance: Suitable for standard water bottles, with a simple, userfriendly interface. Lightweight construction supports steady bottle retention without rattling during rides. Specifications at a glance: Road bike bottle cage with 40% carbon fiber and 60% glass fiber composition for a balance of strength and lightness. Inner diameter about 7274 cm. Designed for road and mountain biking applications. Practical use scenarios: On long road rides: Easy access to fluids without interrupting pace or grip, helping maintain hydration. Offroad mountain biking: Robust materials offer reliable bottle retention on rough terrain while keeping weight low. Daily commuting or training: Quick bottle swaps and secure fit during stopandgo riding and daily workouts.