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31.8mm
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130mm
Select  Steerer Diameter
1.1/8"
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FSA OS-99 3K Carbon CSI Stem - Old Graphic

Carbon Structural Integration (CSI) is a process that permanently bonds carbon to alloy, 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 3K carbon weave skin applied through CSI process. To further reduce weight the OS-99 uses a 4 bolt sculpted AL2014 Alloy/Carbon faceplate and titanium hardware.

Features:

  • 3D Forged and CNC machined from AL7050
  • UD carbon weave skin applied through CSI process
  • 4 bolt sculpted AL2014 Alloy/Carbon faceplate
  • Titanium Hardware
  • Sizes:
    • ±6º x L80, 90, 100, 110, 120, 130mm
    • Ø31.8mm handlebar clamp
    • 41mm fork clamp stack height
  • Finish:
    • UD Carbon finish
    • Flip flop color graphics
  • Weight:
    • 128 g (110mm)

Buy FSA Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Colour: Black - White
  • Length: 130mm
  • Material: Carbon
  • Diameter: 31.8mm
  • Steerer Diameter: 1.1/8"
 

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