FSA OS-99 CSI Stem
The FSA OS-99 CSI (Carbon Structural Integration, before you ask...) stem is a stylish addition to any bicycle and features a carbon fibre exo-skeleton wrapped around an aluminium core. This method of construction can help damp out vibration and increase resistance to torsional flex, it also looks pretty cool!
The OS-99 CSI provides secure clamping force thanks to its four-bolt face plate and features titanium hardware to shave weight whilst offering resistance to corrosion from sweat and other hostile elements. The design is also reversible meaning it can be used in an inverted position to help reduce saddle/handlebar differential and improve comfort.
Features
- CSI (Carbon Structural Integration)
- Titanium hardware
- Reversible colour graphics design
- Four bolt design
- Ø31.8mm handlebar clamp
- 41mm fork clamp stack height
- ±6º rise
- Lengths available 80, 90, 100, 110, 120, 130mm
- Approximate weight: 122 grams (110mm)
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