The Vision Metron 4D Flat M.A.S. Bar gives you a slightly lower hand position then older model of 4D bars. In addition the new innovative Modular Aero System (MAS) has an optional direct mount clip on system for aero bars. This bar measures 31.8mm in diameter, has 125mm drop, 80mm reach, and a 2 degree outward bend. The Grey graphics and UD Carbon Finish looks slick. The 420mm size weighs 267g. Available in 40cm, 42cm, and 44cm lengths.Details:

•  Hand position lower for more comfort then older 4D
•  Modular Aero System (MAS) has an optional direct mount clip on system
•  31.8mm diameter
•  125mm drop, 80mm reach
•  2 degree outward bend
•  UD Carbon Finish
•  Grey Graphics