FSA K-Force OS-99 CSI Gray stem, 120 mm
Ultra-light 3D forged and subsequently CNC machined stem from AL2014 material, which uses CSI (Carbon Structural Integration) carbon fiber reinforcement technology.
This technology guarantees the combination of the best properties of both materials, as well as maximum strength and durability.
• matt UD carbon finish
• intended for handlebars with a diameter of 31.8mm and a fork post 1-1/8" (28.6mm)
• height in the area of attachment to the fork (Stack height) 41mm
• titanium screws
• angle +/- 6°
• length 120mm
• weight 125g (100mm)
Attention: For the correct distribution of pressure between the stem and the carbon column of the fork, it is necessary to have an overlap of the column 2 mm above the stem and use a 5 mm washer.
Colour | black, grey |
Handlebar diameter | other |
product ID | 193436 |

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