Giant Defy Advanced Pro Headset Bearing Kit frame-bearing-kit-mondraker-crafty-xr---rr---r-2020-esi7234618 Unsure of the model or

Unsure of the model or year of your bike

For Cube Litening/Agree Bikes

Lower Bearing - ACB4252H7

Lower Bearing - ACB4252H7

Giant Defy Advanced Pro Headset Bearing Kit frame-bearing-kit-mondraker-crafty-xr---rr---r-2020-esi7234618 Unsure of the model orThis listing includes both the upper and lower headset bearings, two bearings included in sale. For Giant Defy Advanced Pro bikes, compatible with all model years. Upper Bearing MR136 Lower Bearing MR137 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