The OS-99 CSI stem in fresh K-Force design. It is an elaborate manufactured stem with CSI UD carbon cover! CSI (Carbon Structural Integration) is a process that permanently bonds carbon to aluminium, to create a true hybrid product, with many of the benefits of aluminum and Carbon. The OS-99 is 3-D forged and CNC machined from AL2014 before a UD carbon weave skin applied through CSI process. To further reduce weight the OS-99 uses a 4 bolt sculpted AL2014 aluminium/carbon faceplate and titanium screws.
Bar Clamp: 4-bolt, detachable
Material: Aluminium ||| Carbon ||| Titanium
Weight supplement: manufacturer information