FSA 1.5˝ Lower Headset Bearing

This FSA 1.5" Lower Headset Bearing is a genuine replacement component designed to restore smooth steering performance on Trek MTB frames using integrated headset systems. Built to meet modern riding demands, it delivers long‑lasting durability with a fully sealed design that keeps out dirt and moisture.

• Replacement 1.5" lower headset bearing from FSA

• Compatible with most Trek MTB integrated headset systems

• Sealed bearing construction for extended service life

• Works with Knock Block headset systems

• Size: 51.8 mm × 40 mm × 8 mm