I specially bought these bonz expert and miche pistard used...
These are both sealed bearing hubs...
that means they cannot be regresed or otherwise serviced if they get "crunchy"?
You could prise the seals out, clean and regressed the actual bearings and carefully replace the seals but luje I said, you can get bearing cartridges for like £1 a time so why bother.
@user57774 started
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These are both sealed bearing hubs...