Shimano SM-BA01 Di2 Battery Bottle Cage Adapter - Compatible with Road & Mountain Bikes - Secure Mounting for E-Tube Di2 Batteries - Perfect for Cycling Enthusiasts & Professional Riders

Just got a Giant Trance 27.5 full suspension bike in Medium and the frame mount water bottle cage holes are too high. I used this to lower the mount point and now my full size water bottle fits in the frame. Solved my problem. Can be used to raise or lower water bottle mounts.Pros: Made from quality materials. Looks factory installed. Fixes cage mounts being in the wrong place.Cons: Expensive