Vortex 254ZB-39 Aluminum Rear Sprocket 520 Pitch 39T Silver

The Vortex 254ZB-39 is a lightweight aluminum rear sprocket designed for performance street and racing applications. Featuring a 39-tooth count and 520 chain pitch compatibility, this sprocket delivers an optimal balance of acceleration response and top-end performance for demanding riding conditions.

Key Features:

• 39 teeth — optimized gearing for performance street and track use
• 520 chain pitch compatibility
• CNC machined from aerospace-grade aluminum alloy per Vortex specifications
• Silver anodized finish for corrosion resistance and lasting good looks
• Patented Saber Tooth groove design for increased sprocket longevity
• Reduces rotating mass compared to steel sprockets for improved throttle response
• 100% manufactured in the USA

Vortex aluminum rear sprockets are a trusted choice among racers and performance riders. The lightweight construction helps reduce unsprung and rotating weight, contributing to quicker acceleration and improved handling feel. The silver anodized finish (ZB designation) provides a clean, classic appearance while protecting against oxidation.