Vortex 154ZB-50 CAT5 520 Aluminum Rear Sprocket 50T Black

The Vortex 154ZB-50 is a CAT5 lightweight aluminum rear sprocket featuring a 520 chain pitch and 50 teeth in a black anodized finish. Engineered by Vortex Racing and 100% CNC manufactured in the U.S.A., this sprocket is built to exacting standards for street and track use.

The CAT5 series utilizes Vortex's signature color anodizing process, which excludes the sweeps, mud grooves, and teeth — resulting in vivid color contrast with bright silver machine-cut highlights throughout the body. The black finish is paired with a specially formulated aluminum alloy developed to Vortex's own proprietary specifications.

Key Features:

• Lightweight CAT5 aluminum construction reduces rotating mass for improved throttle response and handling
• 520 chain pitch — compatible with 520-series chains
• 50-tooth rear sprocket for tuned final drive gearing
• Black anodized finish with contrasting silver CNC machine-cut accents
• Saber tooth grooves with Vortex's patented unique tooth design for increased sprocket longevity
• Specially formulated alloy per Vortex proprietary specifications
• 100% CNC manufactured in the U.S.A.

The Vortex CAT5 rear sprocket is the preferred choice for performance-oriented riders looking to reduce unsprung and rotating weight without sacrificing durability. The patented tooth geometry promotes smooth chain engagement and extends the service life of both the sprocket and chain.