Vortex 165ZK-39 520 Pitch Rear Sprocket 39 Tooth

The Vortex 165ZK-39 is a high-quality steel rear sprocket designed for 520 pitch chain applications. Engineered for reliability and performance, this sprocket features 39 teeth and is constructed from durable CAD-plated steel for exceptional wear resistance and corrosion protection.

Key Features:

• 39 tooth configuration for optimized gearing
• 520 pitch compatibility for standard racing and street chains
• CAD zinc plating provides superior corrosion resistance
• Precision machined from high-grade steel for durability
• CNC machined for accurate tooth profiles and extended chain life
• Lightening holes reduce rotational mass without sacrificing strength

Vortex sprockets are manufactured to strict tolerances ensuring proper fit and maximum performance. The zinc plating extends service life while maintaining consistent power transfer throughout the drivetrain. Ideal for sport bikes, track bikes, and performance street applications.