The Trek FSA Headset Bearing 1-1/8" is a high-precision replacement bearing designed for use with FSA headset systems on Trek bikes. It ensures smooth steering response and durable performance under varying riding conditions.

Features:

• Fits 1-1/8" FSA headset systems
• High-precision bearing for smooth rotation
• Durable materials to resist wear and corrosion
• Direct replacement for Trek / FSA steerers