Bird Aeris 9 / AM9 Headset Bearing Kit headset-bearing-kit-specialized-tarmac-sl5---54-56cm-frame-size-2003-esi5074073 This kit is for the

This kit is for the Nukeproof Reactor 275/290 | 2020-2024

washers will be supplied

This kit is for the Mondraker Summum Alloy | 2013-2020

For Marin Gesalt X11

Bird Aeris 9 / AM9 Headset Bearing Kit headset-bearing-kit-specialized-tarmac-sl5---54-56cm-frame-size-2003-esi5074073 This kit is for theBoth 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