Originally Posted by fietsbob

You talking about lubricating the internal parts of a mechanical disc brake caliper? which one?

nothing that leaves any residue should be used on the disc,
and nothing at all should be on the disc pads.

remove them first..

there may be a glazing from use on the friction material,
I use a sand paper for metal, to remove that glazing

with the flat surface of a table behind the abrasive paper..




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