Vortex 611-57 520-Pitch Aluminum Rear Sprocket 57-Tooth Silver

The Vortex 611-57 is a 57-tooth, 520-pitch aluminum rear sprocket finished in silver anodize. Engineered to Vortex Racing's exacting standards, this sprocket delivers a measurable reduction in rotating mass compared to steel alternatives, helping to improve throttle response and overall drivetrain efficiency.

Key Features:

• 57 teeth — ideal for tuning acceleration and low-end torque
• 520 pitch chain compatibility
• Machined from high-grade aluminum alloy for lightweight performance
• Silver anodized finish for corrosion resistance and lasting appearance
• Vortex patented tooth profile designed to extend sprocket longevity and reduce chain wear
• Precision-machined to tight concentricity tolerances for smooth, vibration-free power delivery
• Manufactured in the USA to race-proven specifications

The Vortex 611 series aluminum rear sprocket is a popular upgrade for sport bike and racing applications where weight savings and precise gearing changes matter. The 520-pitch format is widely used in performance conversions and stock replacement applications alike.