Why use rebuilt calipers and not new ones – don’t parts wear out and need to be replaced?
The culprit that ruins disc brake calipers is contamination internally and rust externally. Pistons can and do lose their plating due to rust but these are replaced new when needed. If your caliper uses a phenolic [a molded plastic] type of piston, it will be replaced with a new one. The rest of the caliper hard parts don’t wear out but get rusted and dirty from normal wear and tear, and these get thoroughly cleaned. The rubber parts, from the dust boots to the o-ring seals to the slider boots are replaced also.
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- Why use rebuilt calipers and not new ones – don’t parts wear out and need to be replaced?
