Traxxas 4045 Throttle Return Spring is a high-quality replacement part designed to ensure lasting performance for your Traxxas RTR vehicles. Made from durable materials, this 2-piece set is specifically designed for use with TRX 2.5 engines. Whether you're a seasoned RC enthusiast or just starting out, Traxxas 4045 Throttle Return Spring is an essential component that will help keep your vehicle running smoothly. So why wait? Upgrade your Traxxas RTR vehicle today with Traxxas 4045 Throttle Return Spring and experience the ultimate in performance and reliability.