Vortex 491A-39 Silver 39-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 491A-39 is a silver anodized aluminum rear sprocket featuring a 39-tooth count and 520 chain pitch, designed for street and performance motorcycle applications. CNC-machined in the USA from a specially formulated aluminum alloy, this sprocket delivers an ideal balance of lightweight performance and long-lasting durability.

Key Features:

• 39-Tooth / 520-Pitch configuration for precise gearing performance
• 7075 T6 billet aluminum construction — lightweight and strong
• Silver anodized finish to resist corrosion and maintain appearance
• 100% CNC machined in the USA to precise tolerances
• Vortex patented saber tooth groove design for self-cleaning and increased sprocket longevity
• Unique tooth profile reduces chain wear and improves power transfer

The 491A-39 is part of Vortex Racing's trusted line of rear sprockets, engineered to meet the demands of both street riders and track enthusiasts. The silver anodized aluminum construction keeps unsprung weight to a minimum while providing the strength needed for reliable everyday and performance use.