Question

technician a says that the discard thickness is set by how far the caliper piston can safely extend out of the caliper without damage. technician b says that lro is set by the amount of caliper piston retraction. who is correct?
technician a
technician b
both technician a and technician b
neither technician a nor technician b

Explanation:

Discard thickness is determined by the minimum safe thickness of the brake - disc, not by caliper piston extension. LRO (Leading Retracting Offset) is related to brake - pad wear and other factors, not just caliper piston retraction. So neither statement is correct.

Answer:

Neither Technician A nor Technician B