Vortex 511ZB-39 520 Steel Rear Sprocket 39-Tooth Black

The Vortex 511ZB-39 is a high-quality 520 pitch steel rear sprocket featuring 39 teeth and a durable black finish. Engineered for street and racing motorcycles, this sprocket combines strength, longevity, and weight-optimized design for optimal performance.

Key Features:

• 520 pitch with 39 teeth for precise gearing control
• Laser-cut from hardened carbon steel for maximum durability
• Electro-plated satin black finish resists corrosion
• Hardened teeth ensure extended service life without compromising strength
• Weight-reducing cutouts in the sprocket body lower rotating mass
• Patented tooth design increases sprocket longevity
• Precision-manufactured for concentricity and quiet operation
• 100% CNC manufactured to exacting tolerances

Vortex steel rear sprockets are the ideal choice for riders seeking the perfect balance of durability, weight savings, and performance. The hardened carbon steel construction withstands the rigors of aggressive riding while the strategically placed lightening holes reduce unnecessary weight. The black electroplated finish not only looks sharp but provides excellent corrosion resistance for long-lasting performance.