Vortex 201ZK-50 CAT5 Aluminum Rear Sprocket 520 Pitch 50-Tooth

The Vortex 201ZK-50 is a CAT5 series aluminum rear sprocket featuring a 520 chain pitch and 50-tooth count. Engineered for performance-oriented street and track riders, this sprocket is 100% CNC machined from aerospace-grade aluminum for precise concentricity and reduced rotating mass compared to steel alternatives.

Key Features:

• Material: Aerospace-grade aluminum construction for lightweight performance
• Chain Pitch: 520
• Tooth Count: 50 teeth
• Finish: Black anodized hard-coat (ZK suffix) for enhanced surface durability and corrosion resistance
• Design: CNC machined with Vortex's patented saber-tooth groove profile for extended sprocket longevity
• Weight Reduction: Lightening holes reduce rotating mass for improved throttle response
• Laser engraved with the Vortex logo for a premium appearance

The CAT5 series represents Vortex's premium aluminum sprocket line, offering an optimal balance of light weight and durability. The black hard-coat anodized finish (ZK designation) bonds directly to the aluminum surface, providing greater wear resistance and a longer service life than standard anodizing. This sprocket is designed to work seamlessly with Vortex sprocket carriers and is compatible with any 520-pitch chain system.