Vortex 522BZK-37 520 Aluminum Rear Sprocket 37 Tooth Black

The Vortex 522BZK-37 is a high-performance aluminum rear sprocket designed for 520 pitch chain conversions. Featuring 37 teeth, this sprocket is precision-machined from aerospace-grade aluminum to deliver optimal power transfer while reducing rotational mass compared to steel sprockets.

Key Features:

• 520 pitch chain compatibility for lightweight performance
• 37 tooth configuration for customizable gear ratios
• Aerospace-grade aluminum construction reduces unsprung weight
• Black zinc coating provides corrosion resistance and extended durability
• Precision-machined to tight tolerances for smooth, reliable operation
• Unique Vortex tooth profile design increases sprocket longevity
• Ideal for racing, track days, and high-performance street applications

Vortex sprockets are manufactured to exacting standards and tested by professional race teams worldwide. The lightweight aluminum construction combined with the protective black zinc finish makes this sprocket an excellent choice for riders seeking improved acceleration and reduced weight without sacrificing durability. This sprocket is vehicle-specific, so verify fitment for your motorcycle before ordering.