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UpGrade RC "Black Lightning" Rubber Sealed Bearing Kit for Traxxas® TRX-4M—engineered for trail‑ready power, smooth control, and authentic scale detail for.
Upgrade RC UPG-17014 precision bearing kit replaces factory bushings with low-friction, rubber-sealed bearings. Increases drivetrain efficiency and reduces maintenance. Designed for Traxxas TRX-4M micro crawlers; complete kit for wheels, gears, and axles.
