Vortex 630ZB-39 Aluminum Rear Sprocket 420 Pitch 39 Tooth Blue

The Vortex 630ZB-39 is a high-performance aluminum rear sprocket featuring 39 teeth and 420 chain pitch compatibility. Designed for small displacement motorcycles and pit bikes, this lightweight sprocket delivers superior strength while reducing rotating mass for improved acceleration and throttle response.

Key Features:

• CNC machined from high-quality 7075-T6 aluminum for exceptional strength-to-weight ratio
• Blue anodized finish provides corrosion resistance and distinctive styling
• 420 pitch chain compatibility for small displacement motorcycles
• 39 tooth configuration for custom gearing options
• Precision manufactured to ensure perfect concentricity and extended chain life
• Lightening holes reduce rotating mass without compromising structural integrity
• Unique Vortex tooth profile design increases sprocket longevity
• Reduces friction and drag for better acceleration and deceleration

Vortex Racing sprockets are manufactured to exacting tolerances, ensuring consistent performance and extended service life. The lightweight aluminum construction significantly reduces unsprung weight compared to stock steel sprockets, allowing for quicker acceleration and more responsive handling. The blue anodized coating not only looks great but also provides excellent protection against the elements.