Mount any water bottle cage using our Cage Strap Adapter to any diameter 3.25″ or less. This will allow you to mount a water bottle in all kinds of different areas on your bike, you choose what is best for you! The extra wide strap can be cut to your desired length. The Adapter won’t move around because it has a rubber base and compresses on your frame when mounted. Perfect for use on e-bikes which sometimes lack bottle cage bosses.