Description

.8 -100 stem:
FSA K-Force OS-99 CSI Carbon Stem | Pro-Level Road Cycling Performance
Elevate your road bike´s performance and unlock your full potential with the FSA K-Force OS-99 CSI Stem. Engineered for the serious road cyclist and competitive racer, this premium stem represents the pinnacle of lightweight stiffness and responsive handling. It is the ultimate cockpit upgrade for riders who demand uncompromising precision, direct power transfer, and a tangible advantage on every climb, sprint, and descent. Experience the pro-peloton-proven technology that provides the confidence to push your limits and the comfort to endure the longest days in the saddle.
The secret to its incredible performance-to-weight ratio lies in its advanced hybrid material construction. The 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.
This innovative CSI technology gives you the best of both worlds: the robust, unyielding core of a high-end aluminum stem for immediate response to your steering inputs, combined with the vibration-damping properties and feather-light strength of carbon. The result is a ride that feels incredibly sharp and connected to the road, yet filters out fatiguing high-frequency road buzz. Every watt of power from your arms translates directly into forward motion, while the UD carbon finish provides a sleek, modern aesthetic that complements any high-end road cycling build. No detail is overlooked, as evidenced by the premium titanium hardware, which shaves critical grams for a truly competitive setup.
Attributes: Carbon, Road Cycling
Features:
* 3D forged and CNC machined from AL2014
* UD carbon weave skin applied through CSI process
* 41mm fork clamp stack height
* Finish UD carbon finish
Specifications:
* Weight: 126 grams (100mm)
* Sizes: +/- 6º x L80, 90, 100, 110, 120, 130mm
* Diameter: 31.8mm handlebar clamp
* Fork Clamp Stack Height: 41mm