Vortex 491-64 Silver 64-Tooth Aluminum Rear Sprocket

The Vortex 491-64 is a silver, 64-tooth aluminum rear sprocket engineered for motorcycle racing and high-performance street applications. Machined from premium 7075 T6 billet aluminum, this sprocket delivers an exceptional strength-to-weight ratio while significantly reducing rotating mass compared to heavier steel alternatives.

Vortex Racing's patented tooth geometry sets the 491-64 apart from conventional sprockets. The unique tooth profile is designed to extend sprocket life and promote smooth, consistent chain engagement under hard acceleration and demanding track conditions. Every sprocket in the 491 series is 100% CNC machined to tight tolerances, ensuring precise concentricity for vibration-free performance.

Key Features:

• 64-tooth rear sprocket in silver finish
• Machined from lightweight 7075 T6 billet aluminum
• Vortex patented tooth design for extended longevity
• 100% CNC machined for precise concentricity
• Reduces rotating mass for improved throttle response and acceleration
• Race-proven design trusted by professional teams worldwide

Vortex Racing is a U.S.-based manufacturer with over 15 years of experience producing top-quality motorcycle racing components for Motocross, Supercross, Road Racing, Flat Track, and Minibike applications. Each component is built to the tightest tolerances using the best materials in the industry and validated through direct feedback from professional race teams.