Some hubs have "open" bearing assemblies, with only a "dust shield" between them and the elements. You’ll need to routinely inspect, clean and re-grease these type of hubs. In general, inspect, clean and re-grease hubs every 4 months. Carefully disassemble the hub and clean with Citrus BioSolvent or EcoTech-2. Inspect all components and particularly look for pits, cracks, or flat spots in the ball bearings and race surfaces. Generously apply Finish Line Premium Grease to the bearing and race surface, then reassemble. Adjust so bearings run smooth and free, but allow no side-to-side or up-and-down play.
Note
Many hubs now feature "sealed bearing assemblies". Just keep their outer seals clean with an occasional rag wipe. Don’t spray water or degreaser into your bearings. Properly cared for, sealed bearing hubs will last a long time.
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