Vortex 841A-39 Aluminum Rear Sprocket 39 Tooth

The Vortex 841A-39 is a high-performance aluminum rear sprocket featuring 39 teeth, precision-engineered for sport bikes and racing applications. Manufactured using aircraft-grade 7075-T6 aluminum alloy, this sprocket delivers exceptional strength while reducing rotational weight compared to steel sprockets.

Key Features:

• 39-tooth configuration for optimized gearing performance
• CNC-machined from 7075-T6 aluminum for precise tolerances and reduced weight
• Hard-anodized finish for enhanced durability and corrosion resistance
• Self-cleaning mud groove design prevents debris buildup
• Lightening holes reduce rotational mass for improved acceleration
• Manufactured to the tightest tolerances in the industry for smooth, quiet operation

Vortex sprockets are trusted by professional racers worldwide and feature precision-cut teeth that maximize chain life. The lightweight aluminum construction offers significant weight savings over steel while maintaining excellent wear characteristics for street and track use.