Vortex 523ZR-50 Steel Rear Sprocket Series Sprockets - 520 50-Tooth

The Vortex 523ZR-50 is a 50-tooth steel rear sprocket engineered for 520-series chain applications. Vortex is a trusted name in the motorcycle racing and performance community, known for producing precision-machined drivetrain components built to meet or exceed OEM standards.

This sprocket is manufactured from high-quality steel, offering excellent durability and wear resistance for both street and track use. The 50-tooth configuration allows riders to fine-tune their final drive ratio for improved low-end torque and acceleration response.

Key Features:

• 50-tooth rear sprocket for 520-series chain
• Precision-machined steel construction for long service life
• Part of Vortex's ZR series — built for performance and reliability
• Consistent tooth geometry for smooth, quiet chain engagement
• Replaces worn or damaged OEM sprockets with a performance-grade alternative
• Manufacturer Part Number: 523ZR-50

Whether you're dialing in your gearing for a specific track layout or replacing a worn sprocket on your street bike, the Vortex 523ZR-50 delivers the precision and durability that serious riders demand.