Vortex 523ZR-43 Steel Rear Sprocket Pitch Sprockets - 520 43-Tooth

The Vortex 523ZR-43 is a 43-tooth steel rear sprocket designed for 520-pitch chain applications. Engineered by Vortex Racing — a trusted name in performance motorcycle components — this sprocket delivers a reliable, long-lasting solution for riders seeking precise power transfer and dependable drivetrain performance.

Key Features:

• 43-Tooth Configuration: Ideal for tuning acceleration and throttle response characteristics
• 520 Chain Pitch Compatibility: Designed to work seamlessly with standard 520-series chains
• Steel Construction: Provides excellent durability and wear resistance for demanding street and track use
• ZR Series: Vortex's steel sprocket line, offering superior strength over aluminum alternatives for high-mileage applications
• Precision Machined: CNC-machined to tight tolerances for smooth, consistent chain engagement
• Direct OEM Replacement: Bolt-on fitment designed to match original mounting specifications

The Vortex 523ZR-43 rear sprocket is an excellent upgrade or direct replacement for riders who demand quality drivetrain components. Its steel construction makes it particularly well-suited for everyday street riding where longevity is a priority.