Headset bearing Trek FSA 1.5" Headset Bearing - 51.8 x 40 x 8 mm

The Trek FSA 1.5" Headset Bearing is an original replacement part designed to ensure smooth, precise operation of your headset. Thanks to its high-quality sealed design, this bearing provides excellent protection against moisture, dust and impurities to extend its service life.

Developed by FSA, a recognised specialist in bicycle headset components, this model offers smooth, reliable rotation to maintain perfect steering precision on both road and mountain bikes. Its 45° outer contact angle and 36° inner contact angle guarantee optimum adjustment and perfect compatibility with Trek compatible frames and headsets.

Compact and robust, this bearing is ideal for replacing a worn component and restoring your bike's original performance. A reliable solution for maintaining comfort, precision and safety on all your outings.

Technical specifications :

- Type: Sealed headset bearing
- Compatibility: Trek headset compatible FSA 1.5"
- Dimensions: 51.8 x 40 x 8 mm
- External contact angle: 45°
- Internal contact angle: 36°
- Sealing: Yes, protection against water and dirt
- Use: Road, Gravel, MTB
- Reference: W5322818
- Brand: FSA

FAQ - Frequently asked questions

1) Is this bearing compatible with all Trek bikes?

No, it is only compatible with headsets using dimensions 51.8 x 40 x 8 mm and 45°/36° angles.

2) Is this bearing waterproof?

Yes, it has a sealed design to limit water and dust infiltration.

3) Can this bearing be used on a mountain bike?

Yes, it is suitable for road, gravel and MTB use.

4) What do the 45°/36° angles mean?

They correspond to the contact angles of the bearing with the headset to ensure a smooth, precise fit.

5) Is this part an original Trek part?

Yes, this is a genuine Trek replacement bearing manufactured by FSA.