Vortex 404ZK-37 Aluminum Rear Sprocket 37-Tooth Black

The Vortex 404ZK-37 is a high-performance aluminum rear sprocket featuring 37 teeth and a black anodized finish with contrast machined accents. Designed for motorcycle racers and performance enthusiasts, this lightweight sprocket reduces rotating mass compared to OEM steel sprockets, resulting in improved acceleration and handling.

Key Features:

• 37-tooth aluminum rear sprocket with black anodized finish
• 100% CNC-machined in the USA from specially formulated aluminum alloy
• Unique tooth design with Saber tooth grooves increases sprocket longevity
• Lightweight construction reduces unsprung rotating mass for better performance
• Anodized finish prevents corrosion and provides long-lasting durability
• Precision-engineered to Vortex Racing specifications for championship-winning performance

Vortex Racing has been manufacturing race-proven sprockets since 1995, and their aluminum sprockets have become the industry standard for lightweight, high-strength performance. The patented tooth design and precision CNC machining ensure optimal chain engagement and extended service life, making this sprocket ideal for both street and track applications.