Vortex 491A-64 Silver 64-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 491A-64 is a 64-tooth, 520-pitch aluminum rear sprocket finished in silver. Engineered for motorcycle and powersports applications, this sprocket is CNC machined from high-strength aluminum to exacting tolerances, delivering excellent concentricity, durability, and a significant weight reduction over OEM steel sprockets.

Key Features:

• 520 Pitch – Compatible with standard 520-series drive chains
• 64 Teeth – High tooth count for aggressive final-drive gearing
• CNC Machined Aluminum – Precision-manufactured for superior concentricity and reduced rotating mass
• Vortex Patented Tooth Design – Unique saber tooth groove profile engineered to extend sprocket longevity
• Silver Anodized Finish – Electrically coated for a bright, corrosion-resistant appearance
• Lightening Holes – Strategic cutouts reduce overall weight without sacrificing structural integrity

The 491A series from Vortex Racing is a trusted choice for riders seeking performance-grade drivetrain components. The aluminum construction lowers unsprung and rotating mass, contributing to improved acceleration response and handling feel compared to heavier steel alternatives.