Insurgent bikes
For Ribble Ultra SL Bikes
For all bikes using the IS42/IS52 Headset Bearing Kit
We carefully source our bearings and perform quality inspection checks on all batches that arrive to us
For all bikes using the FSA DX Pro No:9M Headset Kit
Marin Gesalt X11, X10, 2.5, 1, 2 Headset Kit Rose Insurgent bikesThis listing includes both the upper and lower headset bearings, two bearings included in sale. For Marin Gesalt X11, X10, 2. 5, 1, 2 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: