Vortex 528AZK-37 Aluminum Rear Sprocket Pitch Hardcoat Sprockets - CAT5 530 37-Tooth Black

The Vortex 528AZK-37 is a premium CAT5 aluminum rear sprocket engineered for riders who demand lightweight performance without sacrificing durability. This 37-tooth sprocket features 530 chain pitch and is designed for sport bikes and performance motorcycles requiring precision-machined drivetrain components.

Constructed from aerospace-grade 7075-T6 aluminum alloy, this sprocket undergoes a specialized hardcoat anodizing process that produces a durable black finish with enhanced wear resistance. The unique manufacturing process anodizes the aluminum first, then CNC machines the final profile, creating striking silver highlights on the tooth surfaces that contrast beautifully with the black anodized body.

Vortex's patented tooth design features precision-engineered grooves that significantly extend sprocket life compared to conventional designs. Each sprocket is 100% CNC manufactured in the USA to the tightest tolerances, ensuring perfect concentricity and smooth, quiet operation. Strategic lightening holes reduce rotating mass for improved throttle response and acceleration while maintaining structural integrity.

The hardcoat anodizing process not only provides excellent corrosion protection but also creates a harder surface than standard anodizing, making these sprockets ideal for street and sport riding applications. This CAT5 series sprocket offers the perfect balance of weight savings, strength, and longevity for riders seeking premium drivetrain components.