Vortex 316BZB-39 CAT5 Rear Sprocket 39T 520 Pitch Blue Aluminum

The Vortex 316BZB-39 is a high-performance CAT5 rear sprocket designed for 520 pitch chain applications. This premium sprocket features 39 teeth and is CNC-machined from lightweight 7075-T6 aluminum alloy, providing an excellent balance of strength and weight savings compared to steel sprockets.

Key Features:

• CNC-machined from 7075-T6 aluminum alloy for exceptional durability
• Brilliant blue anodized finish for corrosion resistance and distinctive appearance
• 39-tooth configuration for optimized acceleration and top speed balance
• 520 pitch chain compatibility for high-performance applications
• Self-cleaning tooth profile design reduces mud and debris buildup
• Precision-cut teeth ensure smooth chain engagement and extended chain life
• Significantly lighter than OEM steel sprockets for reduced rotating mass

Vortex CAT5 sprockets are engineered for sport riders and racers who demand quality and performance. The hard anodized finish provides superior wear resistance while maintaining the sprocket's lightweight characteristics. Each sprocket undergoes rigorous quality control to ensure precise fitment and reliable performance in demanding riding conditions.