Vortex 839AZR-38 Aluminum Rear Sprocket 38-Tooth

The Vortex 839AZR-38 is a lightweight aluminum racing rear sprocket designed for racers and performance enthusiasts who demand maximum power transfer and reduced rotating mass. This 38-tooth sprocket is 100% CNC-machined in the USA from specially formulated aerospace-grade aluminum alloy to Vortex's exacting specifications.

Key Features:

• 38-tooth count for optimized gearing performance
• Lightweight aluminum construction reduces rotating mass
• 100% CNC-manufactured in the USA for precision fitment
• Silver anodized finish prevents corrosion and oxidation
• Patented tooth design increases sprocket longevity
• Engineered for maximum lightness without sacrificing strength
• Ideal for road racing, motocross, flat track, and performance applications

Vortex aluminum sprockets require regular maintenance—chains should be cleaned and tensioned every 300-400 miles to maximize sprocket life and performance. The anodized coating is applied before machining, creating the distinctive two-tone look Vortex sprockets are known for while providing long-lasting protection against the elements.