Vortex 312ZK-31 Black Aluminum Rear Sprocket 31-Tooth

The Vortex 312ZK-31 is a 31-tooth black anodized aluminum rear sprocket designed for high-performance motorcycle applications. Manufactured by Vortex Racing, a trusted name in motorcycle drivetrain components, this sprocket delivers a precise blend of lightweight construction and durability for street and track use.

Key Features:

• 31-Tooth Configuration – Optimizes gear ratio for your riding style and application
• Black Anodized Aluminum Construction – Lightweight design reduces unsprung and rotational mass for improved throttle response
• Vortex Patented Tooth Profile – Unique tooth geometry promotes smooth chain engagement and extends sprocket life
• Precision Laser-Cut – Ensures accurate tooth spacing and consistent fitment
• Corrosion-Resistant Finish – Black anodized surface protects against the elements and maintains appearance
• Direct OEM Replacement – Bolt-on installation with no modifications required

Vortex Racing sprockets are a popular upgrade over stock components, offering reduced weight without sacrificing strength. The 312ZK series is part of Vortex's broad aluminum rear sprocket lineup, available in a wide range of tooth counts to fine-tune acceleration and top-end performance. Whether replacing a worn sprocket or re-gearing for a specific track or riding condition, the 312ZK-31 is a proven, race-proven choice.