Vortex 170ZB-51 VTX Aluminum Rear Sprocket Pitch Sprockets - 51T 520

The Vortex 170ZB-51 is a high-performance 51-tooth aluminum rear sprocket from the VTX series, engineered for sportbike riders seeking a durable, lightweight drivetrain upgrade. Precision-machined from high-grade 7075-T6 aluminum, this sprocket delivers significant weight savings over steel alternatives without sacrificing strength or longevity.

Key Features:

• 51 teeth for aggressive acceleration-focused gearing
• 520 chain pitch compatibility for a wide range of sportbike applications
• CNC-machined from 7075-T6 aluminum for exceptional strength-to-weight ratio
• Hard anodized finish for corrosion resistance and extended wear life
• Precisely drilled lightening holes reduce rotational mass
• Manufactured by Vortex Racing, a trusted name in motorcycle performance components

The Vortex VTX aluminum rear sprocket is a direct OEM-style replacement and performance upgrade designed for easy installation. Whether you're tuning for track days or spirited street riding, this sprocket provides the reliability and performance that Vortex Racing is known for.