The search for the ultimate functional shape stripped of any excess the deda superleggero stem is the lightest production stem made from alloy 7050 3d forged aluminium stem with titanium screws key features stripped down stem lightest production stem made from 7050 3d forged aluminium stem titanium screws technical specifications clamp diameter 317mm angle 82 degrees length 80 90 100 110 120 130 140mm weight 99g 110mm finish black anodized black on bla