Trek Knock Block Headset Bearings Kit Bearing Quality:Basic 6 Different Part ref's)

6 Different Part ref's)

For all bikes using the ACROS AZX-214 Headset

For all Norco Threshold 2017-2021 Carbon Alloy Bikes

For Giant OD2 (Overdrive 2 Road) bikes

For all Santa Cruz Chameleon Bikes

Trek Knock Block Headset Bearings Kit Bearing Quality:Basic 6 Different Part ref's)For all bikes using the Trek Knock Block Headset Bearing Kit Both the upper and lower headset bearings, two bearings included in sale. 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