fsa-full-speed-ahead-metron-4d-drop-handlebar-carbon-31-8mm-42cm-black
fsa-full-speed-ahead-metron-4d-drop-handlebar-carbon-31-8mm-42cm-black, The Metron 4D Flat combines ergonomics and aerodynamics with a lower hand position and a innovative optional Modular Aero System (MAS) direct-mount clip-on system for additional versatility.UD carbon finish