Vortex 312ZR-40 CAT5 Aluminum Rear Sprocket 40-Tooth

The Vortex 312ZR-40 is a 40-tooth CAT5 aluminum rear sprocket engineered for performance motorcycle applications. Manufactured in the USA by Vortex Racing, this sprocket is CNC-machined from 7075 T6 billet aluminum to exacting tolerances, delivering a lightweight and durable replacement for OEM rear sprockets.

Vortex's patented saber tooth groove design sets this sprocket apart, promoting efficient chain engagement and extending sprocket life. The ZR series combines the lightweight benefits of aluminum construction with a hardcoat finish option that bonds to the aluminum surface, reducing friction and improving wear resistance.

Key Features:

• 40 teeth for optimized gear ratio tuning
• CNC-machined from 7075 T6 billet aluminum — lightweight and strong
• Patented saber tooth groove design increases sprocket longevity
• Specially formulated alloy per Vortex specifications
• Available with color anodizing featuring contrasting silver machine cuts
• 100% manufactured in the USA
• Tested with direct feedback from top professional race teams worldwide

Whether you're fine-tuning your gear ratio for improved acceleration or replacing a worn OEM sprocket, the Vortex 312ZR-40 delivers race-proven performance and quality trusted by professional and amateur riders alike.