Vortex 642C-45 CAT5 Rear Sprocket 45 Tooth

The Vortex 642C-45 is a high-performance CAT5 rear sprocket designed for serious riders who demand durability and precision. Featuring 45 teeth, this sprocket is manufactured from premium C45 high-carbon steel that has been heat-treated for exceptional strength and wear resistance.

Key Features:

• CAT5 (C-Series) construction with advanced heat treatment process
• 45 tooth configuration for optimized gearing performance
• CNC-machined from high-carbon steel for precise tolerances
• Black zinc phosphate finish for corrosion resistance
• Lightening holes reduce unsprung weight without sacrificing strength
• Self-cleaning mud grooves help maintain performance in all conditions

Vortex sprockets are engineered to work seamlessly with standard chains and provide long-lasting performance under demanding riding conditions. This sprocket offers an excellent balance of acceleration and top speed characteristics, making it ideal for street and sport riding applications.