Vortex 720FZK-50 520 Aluminum Rear Sprocket 50 Tooth

The Vortex 720FZK-50 is a 520-pitch aluminum rear sprocket with 50 teeth, engineered for serious street and track riders who demand precision drivetrain components. Machined from high-strength 7075-T6 aluminum alloy to exacting tolerances, this sprocket delivers a combination of lightweight performance and impressive durability.

Key Features:

• 520 Chain Pitch – Compatible with standard 520-pitch chain setups
• 50-Tooth Rear Sprocket – Optimized tooth count for acceleration-focused gearing
• 7075-T6 Aluminum Construction – High-strength alloy offers an excellent strength-to-weight ratio
• 100% CNC Machined in the USA – Precision manufacturing ensures superior concentricity and consistent engagement
• Anodized Finish – Hard anodized coating resists corrosion and extends service life
• Unique Tooth Profile – Vortex's proprietary tooth geometry reduces wear and promotes smooth chain engagement
• Lightening Cutouts – Strategic material removal minimizes rotating mass for improved throttle response

Vortex Racing is a U.S.-based manufacturer with over 15 years of motorsport heritage, supplying components to professional road racing, motocross, supercross, and flat track teams worldwide. The 720FZK-50 rear sprocket is a direct bolt-on upgrade over the OEM unit, providing a noticeable improvement in drivetrain precision and reduced unsprung weight.