Mixing aerodynamics and ergonomics, the unique shape of the Metron 4D includes the FSA Vision Aero-Ergo central section. With a slight rise from the stem clamp and a 10 degree forward bend, the 4D accommodates the natural position of your arms for more comfort during climbs and easier breathing, while the wing-like shape of the bar top aids aerodynamics. Kevlar-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 like Shimano Di2 or Campagnolo EPS.
Weight supplement: manufacturer information