FSA Stem OS-99 CSI UD ST (31.8mm)

FSA Stem OS-99 CSI UD ST (31.8mm)

Ref. 62501


prix conseillé : 199,00 €

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The FSA K-Force OS-99 CSI stem is 3D forged and CNC machined from 2014 aluminium. It combines a carbon structure using CSI (Carbon Structural Integration) technology. CSI is a process that permanently bonds carbon and alloy to create a true hybrid product with the many advantages of both aluminium and carbon. The final details reduce the weight of the OS-99 stem by using a sculpted AL2014 alloy/carbon face plate with 4 nuts and titanium bolts.

Key points

  • 3D forged and CNC machined from AL2014
  • Carbon structural integration technology
  • 41 mm fork clamp stack height
  • UD carbon finish
  • Height of gripper stack 41 mm
  • Weight: 125 grams (100 mm)
  • Length: From 90 to 130 mm


  • Brand FSA
  • Made in France No
  • Type Aheadset
  • Handlebar diameter 31.8 mm
  • Material Aluminium
  • Angle (Degree) 06°
  • Color Black
  • Reference 62501
  • EAN13 4712010062027
  • Manufacturer reference 175-0316BKG

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