Easy FitThe DXF bracket fits easily on to the bottle holder mounts on seat tube or down tube. With the fixings included, all you need is a screwdriver to attach the bracket to your bike frame in minutes. Speed-Loading BracketThe unique design of the DXF’s speed-loading frame bracket uses our patented “CLIP+RIDE” system to attach the lock to the bracket for a steady, rattle-free hold while riding. Key Features: Unique speed-loading frame bracket,Easy bottle mount install, No-Rattle design, Compatible with DX locks.