Vortex 840ZK-50 CAT5 Rear Sprocket 50T Black 530 Pitch BST Wheels

The Vortex 840ZK-50 is a premium CAT5 rear aluminum sprocket engineered specifically for high-performance aftermarket wheels including BST, Rotobox, Marchesini, Marvic, and OZ wheels. Featuring 50 teeth with 530 pitch chain compatibility, this sprocket delivers the perfect balance of acceleration and top-end speed for sport bikes and race applications.

Key Features:

• Anodized first, then CNC machined from 7075-T6 aerospace-grade aluminum for exceptional strength-to-weight ratio
• Black anodized finish with silver machined highlights creates a distinctive contrast-cut appearance
• 100% CNC manufactured in the USA to tight tolerances trusted by racing champions
• Unique patented tooth design increases sprocket longevity and ensures optimal chain engagement
• Lightweight construction reduces rotating mass for improved acceleration and power transfer
• 5-bolt pattern with 100mm bolt circle diameter (PCD) and 76mm inner diameter
• Compatible with 530 pitch chains

Vortex Racing sprockets are proven in professional drag racing and AMA Superbike series competition. The CAT5 series represents the pinnacle of Vortex sprocket technology, combining race-proven performance with striking visual appeal. This sprocket is designed for riders who demand maximum performance and reliability from their drivetrain components.