Vortex 825CZK-39 Aluminum Rear Sprocket 530 Pitch 39 Tooth

The Vortex 825CZK-39 is a high-performance aluminum rear sprocket designed for serious motorcycle enthusiasts and racers seeking maximum power transfer and weight reduction. This precision-engineered sprocket features 530 pitch with 39 teeth, making it compatible with a wide range of sportbikes and performance motorcycles.

Key Features:

• CNC machined from high-strength 7075-T6 aluminum alloy for exceptional durability and lightweight construction
• 530 pitch design with 39 teeth for optimized gearing ratios
• Anodized colored finish provides corrosion resistance and distinctive appearance
• Signature Vortex CAT5 design with lightening cutouts reduces rotating mass for improved acceleration
• Precision machining ensures perfect concentricity and smooth power delivery
• Weighs approximately half of steel counterparts while maintaining race-proven strength
• Two-tone machined look created by applying finish before cutting

Vortex Racing has been manufacturing premium motorcycle racing components for over 15 years, with products tested by professional race teams worldwide. Aluminum sprockets require proper maintenance including regular chain cleaning and tension adjustment every 300-400 miles for optimal performance and longevity. Ideal for road racing, track day use, and performance street applications where weight savings and power transfer are priorities.