Is this compatible with Fox and RockShox forks?

Yes — the 1-1/8" ACB 3645 is compatible with any fork using a standard 1-1/8" steerer tube. Most Fox and RockShox MTB forks use 1-1/8" upper steerers on tapered models. Verify your fork's upper steerer diameter.

Should I replace both headset bearings at the same time?

Yes — always replace upper and lower together for consistent steering feel. The lower bearing wears faster; replacing only one creates mismatched stiffness.

How often should I service my headset bearings?

Every 6 months for trail and enduro riding; annually for road use. Remove, clean, re-grease, and inspect. Replace when smooth rotation cannot be restored by servicing.

Enduro Bearings

Enduro Bearing ACB 3645 CC BO - 1-1/8" Black Oxide Coated Angular Contact Headset Bearing

Name: Enduro Bearing ACB 3645 CC BO - 1-1/8" Black Oxide Coated Angular Contact Headset Bearing
Brand: Enduro Bearings
SKU: ACB-3645BOCC-BX
Price: 1699.00 INR
Availability: InStock
Author: InstaSport Editorial

₹1699.00

Description

ACB 3645 CC BO 1-1/8" Angular Contact Black Oxide treated Headset bearing (30.2mm x 41mm x 6.5mm: 36x45 deg) - Angular-contact headset bearing featuring anti-corrosion Black Oxide/Magnetite coated 52100 High-Carbon Chromium alloy races paired with grade 10 Balls. Black Oxide coating provides an extr