FSA OS-99 CSI Mountain/Road Stems are constructed of forged and CNC-machined 7050/T6 aluminum that is gloss carbon 3K weave carbon-wrapped and has a 3K weave carbon front plate.
- Forged and CNC-machined from AL-7050
- 4-bolt sculpted faceplate & Ti hardware
- Gloss carbon 3K weave carbon-wrapped & 3K weave carbon front plate
- 41mm height
|Bar Clamp Diameter||31.8mm|
|S.H.I.S. Clamp Diameter||28.6|