FSA UD carbon stem OS-99 CSI 1 1/8' 6° 31.8mm 70mm black/grey

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  • The K-Force OS-99 csi is 3-D forged and CNC machined from AL2014 before a uni-directional (UD) carbon weave skin applied through the Carbon Structural Integration (CSI) process. To further reduce weight the OS-99 uses a 4-bolt sculpted AL2014 alloy/carbon faceplate and titanium hardware. 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.

    • 3D forged and CNC machined from AL2014
    • UD carbon weave skin applied through CSI process
    • 41mm fork clamp stack height
    • Finish UD carbon finish
    • Weight 126 grams (100mm)
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    Factory number:175-0323BKG
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