Vortex 251ZK-53 Cat5 Rear Aluminum Sprocket Black 53t

The Vortex 251ZK-53 is a Cat5 series rear sprocket machined from lightweight, high-strength aluminum and finished in a durable black anodized coating. Designed for performance street and track riders, this 53-tooth rear sprocket offers a direct OEM-style replacement with the precision fitment and quality Vortex Racing is known for.

Key Features:

• 53-Tooth rear sprocket for optimized acceleration and gearing ratios
• Lightweight aluminum construction — significantly reduces unsprung rotating mass compared to steel
• Black anodized finish for corrosion resistance and aggressive appearance
• Cat5 series design for precise fitment and compatibility
• CNC-machined to tight tolerances for smooth, consistent chain engagement
• Direct bolt-on installation with no modifications required

Vortex Racing is a leading manufacturer of performance motorcycle sprockets trusted by racers and enthusiasts worldwide. Upgrading to this aluminum rear sprocket reduces overall drivetrain weight, improving throttle response and handling dynamics.