The Metron 4D Flat combines the superb ergonomics and aerodynamics of the Metron 4D, with a lower hand position and an innovative Modular Aero System (MAS) direct-mount clip-on system for additional versatility. Reinforced carbon fiber construction gives a great strength-to-weight ratio. The 4D features internal cable routing, with guides that accommodate wiring for electronic shifting.
Continuous carbon composite construction
Aero-Ergo flat-top riser central section follows the natural arc of the arms with a 10-degree forward bend for more ergonomic climbing position and easier breathing
Cable groove compatible with new Di2 systems w/ larger internal cable tunnel
Reinforced and textured lever and stem clamping areas