The FSA OS-115 is a top-notch stem that is light enough for a road bike and strong enough for a mountain bike thanks to the use of 3 of the world's strongest and lightest materials. The aluminum body features length-specific thickness and CNC detailing, making it very lightweight and strong. The carbon-fiber front clamp further reduces this stem's weight while dampening vibration at the same time and the titanium hardware adds a secure fit without increasing the gram count.

---

Features:

Length-specific wall thickness + extensive CNC detail for weight savings

100% CNC machined final shape for maximum tolerance control.

Cold forged body in AL2014 for optimum grain alignment.

Shot-peened shaft for maximum fatigue life

Carbon fiber composite 4-bolt front clamp

Ti 6/4 hardware with TiPrep

31.8mm handlebar clamp only

35mm fork clamp stack height

Weight:138 grams