The Aceco K-Edge chain catcher is engineered to function as a ramp that guides the chain on to the small chainring. It enhances the overall shifting performance and function of the drive train. The K-Edge also protects the frame from damage caused by a derailed chain. The K-Edge Chain Catcher is CNC machined in Boise, Idaho from T6 aluminum. It is endorsed by Olympic gold medalist and world champion Kristin Armstrong.