FSA OS-99 CSI Stem grey 90mm


The K-Force OS-99 CSI stem is 3-D forged and CNC machined from AL2014. Then it’s combined with a carbon structure using our CSI (Carbon Structural Integration) technology. CSI is a process that permanently bonds carbon to alloy to create a true hybrid product, with many of the benefits of aluminium and carbon. The final details reduce the OS-99 stems weight by using a 4-bolt sculpted AL2014 alloy/carbon faceplate and titanium hardware.

SKU: I0370236 Categories: , , Barcode: 400310062024.
Type Stems
Technology CSI, No
Series K-FORCE
Discipline ROAD
Material Carbon
Weight 126
  • 3D forged and CNC machined from AL2014
  • Carbon Structural Integration Technology
  • 41mm fork clamp stack height
  • UD Carbon Finish
  • 41mm Clamp Stack Height
  • Approx weight: 125 grams