Vortex 528ZK-41 CAT5 Aluminum Rear Sprocket 520 Pitch 41 Tooth

The Vortex 528ZK-41 is a high-performance aluminum rear sprocket designed for 520 pitch chains with 41 teeth. This CAT5 series sprocket is precision CNC-machined from aerospace-grade 7075-T6 aluminum, delivering exceptional strength while significantly reducing rotating mass compared to OEM steel sprockets for improved acceleration and handling.

Key Features:

• CNC-machined from 7075-T6 aluminum for optimal strength-to-weight ratio
• CAT5 anodized finish provides corrosion resistance and enhanced appearance
• Vortex patented tooth design increases sprocket longevity
• 520 chain pitch with 41 teeth for precise gearing options
• 100% manufactured in the USA to exacting tolerances
• Unique Saber tooth groove design for extended service life

Vortex Racing has been a trusted name in motorcycle racing components for over 15 years, with their sprockets tested and proven by professional race teams worldwide. Each sprocket features the signature Vortex design with a cupped down face for weight reduction while maintaining structural integrity. The specialized alloy formulation and precision machining ensure consistent performance on street bikes and race machines alike.