Vortex 841ZR-39 Aluminum Rear Sprocket 39-Tooth

The Vortex 841ZR-39 is a lightweight aluminum racing rear sprocket featuring 39 teeth, designed for high-performance street and track applications. This premium sprocket is 100% CNC manufactured in the USA from a specially formulated aluminum alloy to Vortex's exacting specifications.

Key Features:

• Lightweight aluminum construction reduces rotating mass for improved acceleration and performance
• 100% CNC machined in the USA for precise tolerances and consistent quality
• Specially formulated 7075-T6 aerospace-grade aluminum alloy
• Silver anodized finish prevents corrosion and maintains appearance
• Unique patented tooth design increases sprocket longevity and reduces chain wear
• 39-tooth configuration for optimized gear ratio tuning
• Compatible with aftermarket wheels (fitment verification recommended)

Vortex Racing sprockets are the choice of professional racers and performance enthusiasts who demand the highest quality components. The reduced rotational mass of aluminum construction puts more power to the pavement while the precision CNC manufacturing ensures perfect chain engagement for maximum drivetrain efficiency and component life.