bottle cage bicycle,cup holder bike,bottle holder,cup holder,bike rack,bicycle bottle holder,bike cup holder,cube bottle holder,drinking bottle holder bicycle,bike bottle holder,bicycle drinking bottle with holder,holder for drinking bottle bicycle Adjustable bottle holder: The bottle holder can be adjusted to most bottles with a diameter of 60-85 mm. Bicycle Bottle Holder: Perfect for various bicycles such as road bikes, mountain bikes, motorcycles, normal bikes, etc. Premium Material: Made of high-quality plastic and aluminium alloy, very light and durable, ideal for professional and amateur riders. Easy Installation: Simply attach the bottle holder to the frame screw holes using the Allen key. (Please note: Bicycle frame requires threaded holes to install the cage). Features: 1. Compatibility: For various water bottles up to a diameter of 60 85 mm (2.4 3.3 inches). 2. Convenience: Comes with the required tools (screws and Allen key) for installation on the bicycle frame. 3. Protection: Curved design to secure any angle. 4. Comfort: Easy to reach, for both professionals and amateurs. Please note: 1. The bottom of the bottle holder has a fixed adjustment knob that can be adjusted using the Allen key. 2. The advantage of setting is that you can control the tension of the bottle holder to adapt to different bottle sizes. 3. Do not use aluminium or stainless steel water bottles to prevent friction scratches.