Vortex 604ZL-57 Aluminum Rear Sprocket 57-Tooth

The Vortex 604ZL-57 is a high-performance aluminum rear sprocket featuring 57 teeth, designed for racing and performance applications. This lightweight sprocket is precision CNC-machined from 7075 T6 aluminum alloy to Vortex's exacting specifications, delivering exceptional durability while significantly reducing rotating mass compared to OEM steel sprockets.

Key Features:

• 57-tooth rear sprocket configuration
• 100% CNC-manufactured from 7075 T6 aluminum
• Specially formulated alloy per Vortex specifications
• Clear anodized finish prevents corrosion and wear
• Unique tooth design increases sprocket longevity
• Reduced weight improves acceleration and handling
• Precision machining ensures proper chain engagement
• CAT5 design with performance-oriented aesthetics

Vortex aluminum sprockets are manufactured to tight tolerances, providing a lifespan that rivals many steel sprockets when properly maintained. The lightweight construction reduces unsprung weight in the drivetrain, allowing more power to reach the pavement for improved acceleration and throttle response. The anodized surface treatment and debris-clearing grooves between teeth help protect against the elements and extend service life.