Rear Sprocket 51T 5.25 BC 520 Chain

The M AND W ALUMINUM PRODUCTS Rear Sprocket 51T 5.25 BC 520 Chain is a precision-engineered sprocket designed for high-RPM motorsport applications requiring reliable gear reduction. This 51-tooth sprocket is particularly suited for micro sprint racing, where optimizing engine power delivery and weight savings are critical for competitive performance.

Manufactured from aluminum with a natural finish, this sprocket provides a mechanical advantage necessary for speed-focused applications. The 51 teeth offer moderate gear reduction, while the 5.25-inch bolt circle diameter ensures compatibility with standard micro sprint rear hub configurations. The 520 chain pitch guarantees seamless integration with established drivetrain systems.

Micro sprint racers and off-road motorsport competitors will benefit most from this sprocket, as it enhances power transmission efficiency while minimizing weight. The aluminum construction reduces rotating mass compared to steel alternatives, which can improve throttle response. Buyers looking for a 51T rear sprocket will find this product aligns with their needs for performance and compatibility in competitive racing environments.