Giant OD (Overdrive MTB) Headset Bearings Kit headset-bearing-kit-marin-alpine-trail-2015-esi6604281 compatible with all model years

compatible with all model years

This kit is for the Transition Sentinal Carbon | 2018-2026

if you’re still not sure

for 2021 model year

Giant OD (Overdrive MTB) Headset Bearings Kit headset-bearing-kit-marin-alpine-trail-2015-esi6604281 compatible with all model yearsThis listing includes both the upper and lower headset bearings, two bearings included in sale. For bikes using the Giant OD (Overdrive MTB) headset, all model years 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