Vortex 641AZB-45 Aluminum Rear Sprocket 520 Pitch 45 Tooth Black

The Vortex 641AZB-45 is a premium aluminum rear sprocket engineered for riders seeking the perfect balance of lightweight performance and race-proven durability. This 520-pitch, 45-tooth sprocket features black anodizing with striking contrast-cut machined accents for an aggressive appearance that matches its performance capabilities.

Key Features:

• CNC-machined from aerospace-grade 7075-T6 aluminum for exceptional strength-to-weight ratio
• 520 chain pitch with 45 teeth for optimized gearing options
• 100% manufactured in the USA to the tightest tolerances in the industry
• Black anodized finish with contrast machined accents for corrosion resistance and visual appeal
• Vortex patented tooth design with saber-tooth grooves increases sprocket longevity
• Lightweight construction reduces rotating mass for improved acceleration and handling
• Precision manufacturing ensures quiet operation and extended chain life

Vortex Racing sprockets are the choice of professional racing teams and serious enthusiasts worldwide. The reduced rotational weight compared to steel sprockets delivers noticeably sharper throttle response and puts more power to the pavement. Perfect for riders looking to upgrade their drivetrain with race-quality components that deliver both performance and style.