Giant OD2 (Overdrive 2 Road) Headset Kit Mondraker For all bikes using the

For all bikes using the Acros AiX-322 R3 Headset

For all Norco Search 2017 Carbon Bikes

6 Different Part ref's)

For all Vitus Vitessse EVO Bikes

Lower Bearing - ACB4252H7

Giant OD2 (Overdrive 2 Road) Headset Kit Mondraker For all bikes using theThis listing includes both the upper and lower headset bearings, two bearings included in sale. For Giant OD2 (Overdrive 2 Road) bikes, compatible with all model years. Upper Bearing MR136 Lower Bearing MR137 GCR15 High Carbon Chromium Bearings: Chromium offers a corrosion resistance to the bearing, allowing you to get more use and less time in the workshop changing bearings again due to rust and seizing. Buna NitrileRust Resistance Seals: Prevents