Trek Madone Series 9 and Emonda E2 headset

This original Trek bearing is compatible with the Trek Madone 9 series (2016 and later) and Emonda E2 (2021 and later) bikes. This is the upper headset bearing.

If your steering has become less smooth, you will need to replace both the upper and lower bearings.

Technical specifications: - Steel bearing - Bearing height: 6.5 mm- Internal bearing diameter: 37 mm - External bearing diameter: 48.9 mm- For Trek Madone 2016 and later (Series 9) and Emonda E2 (2021 and later)

- Position: upper bearing

- Supplier reference: W513538

- Brand: Trek

Bearing sold individually.