Vortex 642-39 Silver 39-Tooth Rear Sprocket

The Vortex 642-39 is a high-performance 39-tooth rear sprocket engineered for demanding motorcycle applications. Manufactured in the USA from 7075-T6 billet aluminum, this lightweight sprocket delivers exceptional strength while reducing unsprung weight for improved handling and acceleration.

Key Features:

• 100% CNC machined from 7075-T6 billet aluminum for precision and durability
• Patented saber tooth groove design for optimized chain engagement and release
• Silver anodized finish prevents corrosion and maintains appearance
• Unique tooth profile increases sprocket longevity and reduces chain wear
• Manufactured to tight tolerances for smooth, quiet operation
• Lightweight construction reduces rotating mass for better throttle response

Vortex Racing has been manufacturing premium motorcycle racing components since 1995, with products tested by professional race teams worldwide. Each sprocket is made to exacting specifications using specially formulated alloys designed for maximum performance and reliability.