Vortex 641AZB-39 Aluminum Rear Sprocket 39 Tooth Blue

The Vortex 641AZB-39 is a high-performance aluminum rear sprocket featuring 39 teeth and a distinctive blue anodized finish. Engineered for motorcycle racing and performance applications, this sprocket delivers the perfect combination of strength and lightweight construction.

Key Features:

• 39-tooth aluminum rear sprocket for precise gearing options
• Aerospace-grade aluminum construction for optimal strength-to-weight ratio
• Blue anodized finish provides corrosion resistance and distinctive appearance
• 100% CNC manufactured to precise tolerances for perfect concentricity
• Lightweight design reduces rotating mass for improved acceleration
• Compatible with 520 or 525 pitch chains depending on application

Vortex Racing sprockets are trusted by professional racers worldwide for their superior craftsmanship and durability. Each sprocket is precision-manufactured to provide optimal power transfer, reduced rotational mass, and extended service life compared to stock components.