Vortex 312ZK-52 Aluminum Rear Sprocket 520 Pitch 52-Tooth

The Vortex 312ZK-52 is a 52-tooth aluminum rear sprocket designed for 520 pitch chain applications. Built to Vortex Racing's exacting standards, this sprocket is a direct upgrade over heavy OEM steel units, delivering meaningful reductions in rotating mass for improved throttle response and drivetrain efficiency.

Key Features:

• 52-Tooth / 520 Pitch: Bolt-on replacement sized for 520 chain applications in the 312ZK fitment group
• Lightweight Aluminum Construction: CNC-machined from high-strength aluminum alloy and anodized for corrosion resistance and long-lasting color retention
• Precision CNC Machined: Manufactured to tight tolerances ensuring a perfectly concentric fit for smooth, quiet power delivery
• Reduced Rotating Mass: Lighter than OEM steel sprockets, freeing up horsepower and improving acceleration
• Optimized Tooth Profile: Engineered tooth geometry minimizes chain wear and extends the service life of both the sprocket and chain
• USA Manufactured: Produced domestically under strict quality control standards

The Vortex 312ZK-52 is an ideal choice for riders seeking a reliable performance upgrade on the street or track. Always replace the chain and both sprockets together for optimal drivetrain longevity.