Expert Hobby Help ~ Repair Service ~ Indoor RC Track
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Spring, throttle return (2) (Nitro 4-Tec®)—engineered for trail‑ready power, smooth control, and authentic scale detail for adventure. Fits RC builds with.
Traxxas TRA4045 throttle return spring set ensures precise carburetor control and reliable idle return for Nitro 4-Tec models. Made from corrosion-resistant spring steel, they maintain consistent tension under heat. Includes two factory-spec replacement springs.
