Vortex 641AZR-40 CAT5 Aluminum Rear Sprocket 40 Tooth

The Vortex 641AZR-40 is a high-performance aluminum rear sprocket featuring 40 teeth, engineered for riders seeking reduced weight and improved performance. Manufactured in the USA from aerospace-grade 7075-T6 aluminum billet, this sprocket delivers significant weight savings compared to OEM steel sprockets, reducing rotating mass for enhanced acceleration, deceleration, and handling response.

Key Features:

• 100% CNC machined from 7075-T6 billet aluminum for precision and strength
• Lightweight construction reduces rotating mass and improves power transfer
• Anodized finish with machined accents for durability and distinctive appearance
• Patented saber tooth groove design increases sprocket longevity
• Manufactured to the tightest tolerances with aerospace-grade materials
• Designed and tested by professional race teams worldwide

Vortex Racing has been manufacturing premium motorcycle racing components for over 15 years, supplying professional race teams in Motocross, Supercross, Road Racing, and Flat Track Racing. Each sprocket is engineered to achieve maximum lightness while maintaining the strength required for high-performance applications.