Giant Defy Advanced Headset Kit Trek

Giant Defy Advanced Headset Kit TrekThis listing includes both the upper and lower headset bearings, two bearings included in sale. For Giant Defy Advanced 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 out on the trails and less time in the workshop changing bearings again due to rust and seizing. Buna NitrileRust Resistance Seals:

Packed with Lithium Grease: Ensures smooth operation and protection from the elements

For Liv Langma Advanced SL & Pro bikes

you can be rest assured our bearings are the right choice for your pride and joy

For Liv Avail Advanced Pro bikes

Complete frame pivot bearing kit for the  Specialized Turbo Levo | 2019-2021

For all Santa Cruz Hightower Bikes

For all Vitus Energie 2014-2024 Bikes

This kit is for the Transition Patrol Carbon | 2018-2020

5 Different Part ref's)

suitible for all model years

compatible with all model years up to 2022

For all Transition Relay 2023+ Alloy Bikes