Vortex 839AZB-40 Aluminum Rear Sprocket 40 Tooth Blue

The Vortex 839AZB-40 is a lightweight aluminum rear sprocket designed for high-performance street and racing applications. This 40-tooth sprocket combines Vortex's precision engineering with an attractive blue anodized finish for both performance and style.

Key Features:

• 100% CNC manufactured in the USA for precise tolerances and consistent quality
• Constructed from specially formulated 7075-T6 aluminum alloy per Vortex specifications
• Blue anodized finish prevents corrosion while adding visual appeal
• Patented tooth design increases sprocket longevity and power transfer efficiency
• Lightweight construction reduces rotating mass for improved acceleration
• 40 teeth configuration for balanced gearing

Vortex Racing sprockets are engineered to withstand the demands of racing and high-performance riding. The reduced weight compared to steel sprockets helps put more power to the pavement while maintaining durability. Each sprocket features Vortex's unique tooth profile that extends service life and ensures smooth chain engagement.