Innovative Diameter Adjustment System Makes Adapting The Modula(TM) Cage From Traditional Cycling Water Bottle Sizes To Store Bought Bottled Water Containers Quick And Simplea | Just Push A Button And Slide To Fit. Constructed Of Engineering Grade Plastic And Aluminum. Fits Bottles With An Outer Diameter Of 2.5" 2.9". The Topeak Modula Cage II is a versatile and lightweight water bottle cage designed for cyclists seeking durability and ease of use. Crafted from high-quality materials, this cage securely holds standard-sized water bottles, ensuring hydration stays close during rides. Its sleek design complements a variety of bike styles, making it an excellent choice for road, mountain, and commuter bikes.Engineered for quick access, the Modula Cage II features a flexible yet firm grip that prevents bottles from rattling or falling out while riding over rough terrain. The cage&';s streamlined form reduces aerodynamic drag, contributing to better performance on the trail or road. Its straightforward installation process allows for quick mounting on most bike frames, making it a practical addition to any cycling setup.The Topeak Modula Cage II combines functionality with durability, offering a reliable hydration solution that withstands various weather conditions and prolonged use. Whether you&';re engaging in long-distance rides or daily commuting, this water bottle cage ensures your hydration needs are met efficiently and securely, enhancing your overall cycling experience.Features:Lightweight and durable construction for reliable performanceSecure grip design prevents bottles from rattling or falling outStreamlined profile reduces aerodynamic dragEasy to install on most bike framesSuitable for standard-sized water bottles for versatile hydrationtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }