FSA

KFX Mountain Stem - 31.8mm Clamp, -12 Degree

FSA KFX Mountain Stem - 31.8mm Clamp, -12 Degree delivers the precision and control serious XC and trail riders demand. Built from lightweight CNC-machined aluminum, this stem strikes the perfect balance between stiffness, strength, and low weight—ideal for riders chasing efficiency and confident steering on technical terrain.

With its sleek, understated design and -12° rise, the KFX Mountain Stem puts you in a powerful, race-ready position without adding unnecessary grams. Every detail reflects FSA’s commitment to performance engineering, from the clean clamping interface to the refined finish that complements any high-end cockpit build.

• Lightweight CNC-machined aluminum for maximum stiffness and durability
• -12° rise offers an aggressive, efficient position for XC and trail performance
• 31.8mm clamp fits modern handlebars securely while maintaining a sleek profile
• Designed for precise handling and a clean, race-ready aesthetic

Whether dialing in a carbon race rig or upgrading a trusted trail bike, the FSA KFX Stem gives riders the responsive feel and confidence needed to push harder, climb faster, and carve every line with precision.