Built for ultimate versatility, the Topeak Modula Cage EX Adjustable Bottle Cage adapts to fit a wide range of bottles with diameters between 51 mm and 73 mm. Crafted from durable engineering-grade polymer, this lightweight and compact cage ensures your hydration stays secure even on rough terrains. Its adjustable dial mechanism allows quick size customization for everything from standard cycling bottles to convenience-store beverages. Perfect for road, gravel, or mountain bikes, the Modula Cage EX combines durability, practicality, and style in one essential accessory.