Vortex 543AZB-43 CAT5 Black Aluminum Rear Sprocket 43-Tooth 520-Pitch

The Vortex 543AZB-43 is a CAT5 lightweight aluminum rear sprocket featuring 43 teeth on a 520 pitch, finished in an aggressive anodized black with contrasting silver machine cuts. Engineered by Vortex Racing in the USA, this sprocket is built to perform on both the street and track.

Key Features:

• CAT5 Lightweight Aluminum Construction — specially formulated alloy per Vortex specifications for an optimal strength-to-weight ratio
• 100% CNC Manufactured in the USA — precision-machined to exacting tolerances for consistent fit and performance
• Anodized Black Finish — color anodizing with bright silver machine-cut highlights provides corrosion resistance and a premium appearance
• Vortex Patented Saber Tooth Groove Design — unique tooth geometry increases sprocket longevity and improves chain engagement
• Cupped Body Profile — material is relieved from the tooth ring to the body hub, reducing rotating mass for improved throttle response
• 43-Tooth / 520-Pitch — direct OEM-compatible sizing for supported applications

The Vortex CAT5 rear sprocket line is a favorite among sport bike and racing enthusiasts looking to reduce unsprung weight and improve drivetrain efficiency without sacrificing durability.