Rear Sprocket 47T 6.43 BC 520 Chain

The M AND W ALUMINUM PRODUCTS Rear Sprocket 47T 6.43 BC 520 Chain is designed for high-performance motorcycle and powersports applications, where precise drive-train geometry is crucial for optimizing acceleration and engine efficiency. This 47-tooth rear sprocket is ideal for riders and mechanics looking to adjust their final drive ratio for improved performance, whether for aggressive acceleration or extended cruising.

Constructed from a lightweight aluminum alloy, this sprocket features a 6.43-inch bolt circle diameter (BC) and is compatible with 520-pitch chains, a standard for modern sportbikes and mid-displacement machines. The 47-tooth configuration strikes a balance between top-end speed and mid-range power, making it versatile for various riding styles. Precision machining ensures consistent tooth geometry, which helps prevent chain wear and maintains smooth power delivery.

Riders upgrading their drivetrain will appreciate the benefits of this sprocket, as it minimizes unsprung weight at the rear wheel, enhancing acceleration response and fuel efficiency. Whether you're enhancing a sport bike, cruiser, or off-road vehicle, this sprocket is a reliable choice for optimizing performance across different throttle inputs.