Vortex 193AZR-39 Aluminum Silver 39-Tooth 520 Rear Sprocket

The Vortex 193AZR-39 is a 39-tooth aluminum rear sprocket finished in silver, designed for 520 pitch chain applications. Manufactured in the USA to exacting tolerances, this sprocket is a direct upgrade over OEM components for street and performance riding.

Key Features:

• 39-tooth rear sprocket for precise gearing customization
• Lightweight aluminum construction reduces rotating mass and improves throttle response
• 520 pitch chain compatibility
• Silver (AZ) finish — specially formulated alloy per Vortex specifications
• Patented Vortex tooth design for extended sprocket longevity
• 100% CNC manufactured in the USA to precise tolerances
• Ensures concentricity for smooth, quiet chain operation

Vortex Racing sprockets are the preferred choice of professional race teams and serious enthusiasts worldwide. The aluminum construction reduces unsprung and rotating weight compared to steel sprockets, directly contributing to improved acceleration and handling. Part number cross-reference: 193-39, 193AZR39.