Vortex 313ZR-38 Red Aluminum Rear Sprocket 38-Tooth

The Vortex 313ZR-38 is a red anodized aluminum rear sprocket with 38 teeth, engineered for motorcycle applications demanding reduced rotating mass and improved drivetrain performance. Manufactured in the USA by Vortex Racing, this sprocket is CNC-machined from a specially formulated aluminum alloy to precise tolerances, ensuring concentricity and consistent chain engagement.

Key Features:

• 38-Tooth aluminum rear sprocket — lightweight construction reduces rotating mass for improved acceleration response
• Red anodized finish — Cat 5 anodized for a bright, durable appearance that resists corrosion and wear
• 100% CNC machined in the USA to Vortex's precise tolerances
• Vortex patented tooth design — unique profile engineered to increase sprocket longevity and improve chain life
• Lightening holes — strategically placed to further reduce overall weight and rotating mass
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio

Vortex Racing rear sprockets are the preferred choice of professional road racers and performance enthusiasts alike. The 313ZR-38 delivers a direct-fit replacement or gearing upgrade, helping riders fine-tune acceleration and top-speed characteristics. Always replace the front sprocket and chain simultaneously when installing a new rear sprocket for maximum drivetrain life.