Vortex 826A-39 Rear Sprocket 39 Tooth 520 Pitch Aluminum

The Vortex 826A-39 rear sprocket combines lightweight performance with exceptional durability for sport and track applications. Precision-machined from 7075-T6 aluminum alloy, this 39-tooth sprocket delivers significant weight savings over steel while maintaining strength where it matters most.

Key Features:

• 39-tooth configuration for 520 pitch chain applications
• CNC-machined from aerospace-grade 7075-T6 aluminum alloy
• Hard-anodized finish for extended wear resistance
• Self-cleaning mud groove design helps shed debris
• Lightening holes reduce rotational mass without compromising strength
• Precision tooth profile ensures optimal chain engagement
• Silver finish with laser-etched Vortex branding

Vortex sprockets are engineered to exact tolerances for smooth power transfer and extended chain life. The hard-anodized surface treatment provides a wear-resistant barrier that significantly outlasts standard aluminum sprockets, making this an ideal choice for riders seeking performance without frequent replacement intervals.