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

Trek ’s FSA 1.5" Headset Bearing is a genuine replacement part designed to ensure the smooth and precise operation of your headset. Thanks to its high-quality sealed design, this bearing provides excellent protection against moisture, dust and debris, thereby significantly extending its service life.

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

Compact and robust, this headset is ideal for replacing a worn part and restoring your bike to its original performance. A reliable solution to ensure comfort, precision and safety on all your rides.

Technical specifications:

- Type: Sealed headset bearing
- Compatibility: Compatible with Trek headsets FSA 1.5"
- Dimensions: 51.8 x 40 x 8 mm
- Outer contact angle: 45°
- Inner contact angle: 36°
- Sealing: Yes, protection against water and dirt
- Use: Road, Gravel, Mountain biking
- Product code: W5322818
- Brand: FSA

FAQ – Frequently Asked Questions

1) Is this bearing compatible with all Trek bikes?

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

2) Is this bearing sealed?

Yes, it features a sealed design to minimise the ingress of water and dust.

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

Yes, it is suitable for use on road bikes, gravel bikes and mountain bikes alike.

4) What do the 45°/36° angles refer to?

They refer to the angles at which the bearing contacts the headset, ensuring a precise and smooth fit.

5) Is this a genuine Trek part?

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