Vortex 125ZB-37 Aluminum Rear Sprocket 520 Pitch 37 Tooth Silver

The Vortex 125ZB-37 is a high-performance aluminum rear sprocket designed for motorcycle racing and street applications. This precision-engineered 37-tooth sprocket delivers the perfect balance of acceleration and top speed for sport and performance motorcycles equipped with 520 pitch chain drive systems.

Key Features:

• 37-tooth configuration for optimized gearing ratios
• Lightweight aluminum construction reduces rotating mass for improved acceleration
• 100% CNC machined in the USA for precise fitment and durability
• Silver anodized finish prevents corrosion and adds a clean, professional appearance
• Vortex's patented tooth design increases sprocket longevity and wear resistance
• Specially designed tooth layout distributes chain load evenly to extend service life
• Compatible with 520 pitch chains

Vortex Racing aluminum sprockets are the racer's choice, offering significant weight savings over steel sprockets while maintaining excellent durability. The reduced rotating mass helps put more power to the pavement, improving both acceleration and handling. Each sprocket is manufactured to exacting tolerances, ensuring proper chain alignment and smooth operation. When it's time to replace your worn sprocket or change gearing ratios for improved performance, the Vortex 125ZB-37 delivers proven reliability and quality.