Vortex 840CZB-51 Aluminum Rear Sprocket 51 Tooth Black 520 Chain

The Vortex 840CZB-51 is a precision-engineered aluminum rear sprocket designed for sportbike and racing applications. This lightweight 51-tooth sprocket features black anodized finish with machined accents, delivering both performance and aggressive styling for your motorcycle.

Performance Features:

• 100% CNC manufactured in the USA from specially formulated aluminum alloy
• Lightweight construction reduces rotating mass for improved acceleration and handling
• Black anodized finish with machined accents prevents corrosion while providing a premium appearance
• Unique tooth design increases sprocket longevity and wear resistance
• Precision machined to the tightest tolerances for optimal chain engagement

Technical Specifications:

• Tooth Count: 51 teeth
• Chain Pitch: 520
• Bolt Pattern: 5 holes (10mm) with 100mm PCD (Pitch Circle Diameter)
• Center Bore: 76mm ID
• Material: Aerospace-grade aluminum alloy
• Finish: Black anodized with silver machined accents

Vortex Racing has been manufacturing top-quality motorcycle racing components since 1995, with products tested on the track by professional race teams worldwide. Each Vortex sprocket is engineered to achieve maximum strength while minimizing weight, making them the preferred choice for motocross, supercross, road racing, and high-performance street applications.