The new Metron TFA Aerobar system features a flip-flop carbon wing basebar, ergonomic extensions and a snakebite stem which integrates the system together. This allows for an internal Di2 junction box with internal cable routing along with one of the highest adjustable AM option currently available. Fit increments in various dimensions are the foundation of the Metron Aerobar design and are easily adjustable with no occluded bolts. UCI 3:1 compliant and full internal wiring compatible. The stiffest, most adjustable and most durable fully integrated Aerobar currently available. Stack: 70mm to 145mm (Bottom of stem at center to top of uncompressed pad - 5mm Increments) Reach: 9mm to 99mm (Center of Basebar to rear edge of armrest - 7.5mm Increments) Armrest Width: 210mm to 360mm (outside-to-outside – 15mm Increments) Extension Length Adjustment: 245mm to 385mm (center of basebar to tip) Extension Length: 412mm Extension Height: 60mm Extension Angle: 35° (12° at extension tip) Extension Width: 80mm (C-C) Armrest Rotation: 0-13° Basebar Width: 40cm (C-C) Basebar Drop/Rise: /-25mm Bracket Tilt Adjustment: 0-16° Stem Length: 90mm Weight: 1155g