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The StopTech 42mm replacement piston is a direct-fit service part for STR-22 Trophy Race calipers. It restores piston function during a caliper rebuild, allowing proper hydraulic sealing and pad movement when refurbishing brake hardware. Intended for technicians and racers rebuilding STR-22 calipers, it provides a necessary OEM-style component to maintain brake function without altering caliper design.
StopTech Replacement Piston 42mm for STR-22 Trophy Race Calipers
