FSA
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.
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Replacement 1.5" lower headset bearing from FSA
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Compatible with most Trek MTB integrated headset systems
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Sealed bearing construction for extended service life
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Works with Knock Block headset systems
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Size: 51.8 mm × 40 mm × 8 mm
Shipping information
Ships in 2–3 business days with free delivery across Canada on orders over $99. Same‑day pickup available Tue–Sat (closed Sun–Mon).
Returns & warranty
Enjoy hassle‑free returns within 30 days on unused items in original packaging (excludes bikes and sale items). Free in‑store returns anytime.