RK Chains Gold 520 Aluminum Race Chain and Sprocket Kit delivers lightweight performance for competitive riders. This premium kit combines a durable 520 gold chain with precision-engineered aluminum sprockets, engineered to reduce unsprung weight while maintaining exceptional strength. The gold chain resists corrosion and offers smooth power delivery, while the aluminum sprockets accelerate faster and improve throttle response. Ideal for track days, racing, and high-performance street applications where every ounce counts. Experience the difference quality engineering makes in your ride's acceleration and handling.