Transition Smuggler Headset Bearings Kit frame-bearing-kit-specialized-stumpjumper-carbon-2019-esi5987403 For Mondraker Thundra X /

For Mondraker Thundra X / Alloy Bikes

For all Whyte T-120 T-130 T-160 G-160 G-180 S-120 S-150 Bikes

For all Planet X Tempest Bikes

For Giant TCR bikes

Transition Smuggler Headset Bearings Kit frame-bearing-kit-specialized-stumpjumper-carbon-2019-esi5987403 For Mondraker Thundra X /Both the upper and lower headset bearings, two bearings included in sale. For all Transition Smuggler Bikes Upper Bearing MH P03K 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 the bearing.