Originally Posted by
jlstrat
I upgraded my components last year to the new Ultegra 6800 group. I want to repack the hubs, but I noticed that they use ball retainers rather than just greased bearings.
Why not clean, re-lube w/ your favorite potion & re-install?
Were the hubs rough before disassembly? Are the bearing retainers damaged & bearings pitted?
Shimano tech docs are indeed properly detailed, replace to give peace of mind.