Vortex 203ZR-39 Aluminum Rear Sprocket 39 Tooth

The Vortex 203ZR-39 is a precision-engineered aluminum rear sprocket featuring 39 teeth, designed to deliver superior performance and durability for motorcycle applications. Manufactured from high-grade 7075-T6 aluminum alloy, this sprocket offers an excellent balance of light weight and strength, making it ideal for both street and track use.

Key Features:

• 39-tooth configuration for optimized gearing performance
• Constructed from lightweight 7075-T6 aluminum alloy for maximum strength-to-weight ratio
• Patented tooth profile design increases sprocket longevity and reduces chain wear
• CNC-machined to aerospace tolerances for precise fitment and true concentricity
• Hard-anodized finish provides superior corrosion and wear resistance
• Significantly lighter than steel sprockets without sacrificing durability
• Self-cleaning design helps prevent mud and debris buildup

Vortex sprockets are engineered and tested by professional race teams worldwide, ensuring track-proven performance and reliability. Each sprocket undergoes strict quality control to meet Vortex's exacting standards for precision and durability.