Boardman ADV Headset Bearing Kit Giant For all bikes using the

For all bikes using the FSA Orbit ITA No:9 Headset

For Pinarello Dogma F8/F10/Gan/Gan Bikes

For Cervelo Aspero 5 & Caledonia 5 Bikes

For Ribble Ultra SL bikes where the lower headset bearing is slightly taller in height

Both the upper and lower headset bearings

Boardman ADV Headset Bearing Kit Giant For all bikes using theThis listing includes both the upper and lower headset bearings, two bearings included in sale. For Boardman ADV Bikes, all model years Upper Bearing MH P08F ? Lower Bearing ACB518K 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