Vortex 641ZK-50 Steel Rear Sprocket Chain Pitch Sprockets - 50-Tooth 520

The Vortex 641ZK-50 is a 50-tooth steel rear sprocket designed for high-performance motorcycle applications. Engineered by Vortex Racing, a trusted name in motorcycle drivetrain components, this sprocket delivers reliable power transfer and long-lasting durability on both the street and track.

Key Features:

• 50-Tooth Configuration – Increases rear wheel torque for improved acceleration and low-end pulling power
• Steel Construction – Provides exceptional strength and wear resistance for extended service life
• Precision Machined – CNC-machined to exact tolerances for smooth, consistent chain engagement
• 520 Chain Pitch Compatible – Designed for use with standard 520-pitch drive chains
• Direct OEM Replacement Fit – Engineered to match factory mounting specifications for straightforward installation
• Vortex Racing Quality – Manufactured to meet the demands of performance riders and racing applications

The Vortex 641ZK-50 rear sprocket is an ideal upgrade or replacement for riders seeking improved acceleration characteristics or a direct factory-spec replacement with aftermarket quality. Compatible with the Vortex sprocket carrier and standard 520 chain systems.