Check the listing for details. Topeak Cage Side Mount Bottle Cage Storage - Adjustable, Rotatable Side-Entry. Condition: New. Listed at 25.95 USD. The Topeak Cage Side Mount relocates water bottle access to the side of the frame tube rather than from the top. Its adjustable mount fits frame tubes from 25mm to 35mm diameter without permanent installation. The cage rotates and locks in multiple positions to clear frame obstructions and accommodate different bottle sizes.Side-entry design lets riders grab bottles without lifting straight up from cramped frame triangles. Adjustable clamp fits round frame tubes from 25mm to 35mm diameter with secure grip. 360-degree rotation with multiple lock positions clears cables, frame bags, and tight geometries. Tool-free installation and removal won't damage frame finish or require permanent mounting holes. Works with standard water bottles and most cycling bottle shapes.