Vortex 165ZK-57 Rear Sprocket Pitch Aluminum Sprockets - 520 57-Tooth

The Vortex 165ZK-57 is a high-performance 520 pitch rear sprocket featuring 57 teeth, designed for motorcycle racing and performance applications. This aluminum sprocket is precision CNC-machined from aerospace-grade 7075 aluminum alloy, delivering exceptional strength while minimizing rotational mass for improved acceleration and handling.

Key Features:

• 520 chain pitch compatibility for lightweight performance conversions
• 57-tooth configuration for customized gearing ratios
• CNC-machined from 7075 aluminum for optimal strength-to-weight ratio
• Vortex patented tooth design increases sprocket longevity and chain engagement
• Precision-manufactured to tight tolerances for smooth, quiet operation
• Anodized finish for corrosion resistance and durability
• 100% manufactured in the USA

Vortex sprockets are the trusted choice of racing champions, offering superior performance and durability compared to OEM components. The unique tooth profile ensures optimal chain hold and release, reducing wear on both the sprocket and chain while delivering consistent power transfer under demanding conditions.