Vision Metron 4D premium carbon road handlebars. The unique shape, which combines aerodynamics and ergonomics, includes our Aero-Ergo centre section. With a slight lift from the stem and a 10-degree forward bend, the 4D adapts to the natural position of your arms for increased comfort and breathability, while the wing-like shape of the top of the handlebar aids aerodynamics. The reinforced carbon fibre construction provides an excellent strength-to-weight ratio. The 4D is equipped with internal cable routing with guides that accommodate the wiring for electronic shifting. Countinuous Carbon Composite design Ergo handlebar arch shape with better reach to Aero brake levers - Ergo handlebar top section Di2 compatible UD Carbon finish Weight: 240 g