Bird Aeris 9 / AM9 Headset Bearing Kit headset-bearing-kit-planet-x-titus-roadrunner-2015-esi4805354 For Giant TCR Advanced bikes

For Giant TCR Advanced bikes

For Cane Creek S-3 S3 S-3 Plus S3 Plus ZS-3 ZS3 Bikes

For Boardman MHT Bikes

For all Scott Scale & Spark bikes (Pre 2022)

This kit is for the Santa Cruz Hightower 2 | 2019-2021

Bird Aeris 9 / AM9 Headset Bearing Kit headset-bearing-kit-planet-x-titus-roadrunner-2015-esi4805354 For Giant TCR Advanced bikesBoth the upper and lower headset bearings, two bearings included in sale. For all Bird Aeris 9 AM9 Bikes Upper Bearing MH P03K Lower Bearing MH P25K GCR15 High Carbon Chromium Bearings: Chromium offers a corrosion resistance to the bearing, allowing you to get more use out on the trails and less time in the workshop changing bearings again due to rust and seizing. Buna NitrileRust Resistance Seals: Prevents moisture getting inside the bearing. Packed