Norco Sight 2017-2019 Carbon Alloy Headset Bearing Kit frame-bearing-kit-mondraker-summum-alloy-2021-esi5891672 For Mondraker Thundra X /

For Mondraker Thundra X / Alloy Bikes

all model years compatible

For Santa Cruz Jackel Bikes

For all Norco Search 2019 XR Carbon

For Boardman Comp Bikes

Norco Sight 2017-2019 Carbon Alloy Headset Bearing Kit frame-bearing-kit-mondraker-summum-alloy-2021-esi5891672 For Mondraker Thundra X /Both the upper and lower headset bearings, two bearings included in sale. For all Norco Sight 2017 2019 Carbon Alloy Bikes 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 getting inside