Ridley Helium Headset Kit headset-bearing-kit-mondraker-dune-2015-esi9193661 Spectral & Stitched bikes

Spectral & Stitched bikes

For all bikes using the ZS44/EC49 Headset Bearing Kit

please see our other products if you have an SL5 in another frame size

For Cervelo R5 2021 & RX Bikes

For Cube Litening/Agree Bikes

Ridley Helium Headset Kit headset-bearing-kit-mondraker-dune-2015-esi9193661 Spectral & Stitched bikesBoth the upper and lower headset bearings, two bearings included in sale. For all Ridley Helium Bikes, all model years compatible Upper Bearing MH P08F Lower Bearing MH P22 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