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> Bicycling Catalog > Parts > Stems > FSA > OS-99 CSI Stem
 
FSA OS-99 CSI Stem

FSA OS-99 CSI Stem

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31.8mm
Black
1-1/4-inch and 1-1/8-inch
Availability: Please select options
 

Product Details

FSA OS-99 CSI Stem

FSA's K-Force OS-99 CSI is 3-D forged and CNC machined from AL2014 before a uni-directional (UD) carbon weave skin is 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.

- Stack Height: 41mm
- Weight: 126g (100mm)

Features and Information

 
  • Part Numbers close open

    Option Barcode Manufacturer's Part Number Vendor Number
    31.8mm / Black / 90mm / 6° / 1-1/4-inch and 1-1/8-inch 00400310062024 175-0316BKG QBP-SM8010
    31.8mm / Black / 100mm / 6° / 1-1/4-inch and 1-1/8-inch 00400310062031 175-0317BKG JBI-58702
    31.8mm / Black / 110mm / 6° / 1-1/4-inch and 1-1/8-inch 00400310062048 175-0318BKG JBI-58703
    31.8mm / Black / 120mm / 6° / 1-1/4-inch and 1-1/8-inch 00400310062055 175-0319BKG JBI-58704
    31.8mm / Black / 130mm / 6° / 1-1/4-inch and 1-1/8-inch 00400310062345 175-0321BKG JBI-58705
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Steven's Bicycles - Fresno

4045 W. Figarden #105
Fresno, CA 93722

559-229-8163

Mon-Fri 11-7, Sat 10-7, Sun 11-5

Steven's Bicycles - Clovis

1365 N. Willow #150
Clovis, CA 93619 

559-797-0148

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