Vortex 491AS-45 Silver Anodized 45-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 491AS-45 is a 45-tooth, 520-pitch aluminum rear sprocket finished in a silver anodize. Designed for performance-minded riders, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy and silver anodized for corrosion resistance and a clean, classic appearance.

Key Features:

• 45-Tooth / 520-Pitch rear sprocket for optimized gearing performance
• Silver anodized finish resists corrosion and provides an attractive look
• Lightweight aluminum construction reduces rotating mass and improves throttle response
• 100% CNC manufactured in the USA from a specially formulated alloy per Vortex specifications
• Vortex patented unique tooth design increases sprocket longevity
• Saber tooth grooves machined for enhanced chain engagement and wear characteristics

Vortex rear aluminum sprockets are a top choice for street and track riders looking to reduce unsprung weight and fine-tune their bike's power delivery. The silver anodized finish on the 491AS series makes it a visually appealing upgrade over stock steel sprockets while delivering measurable performance benefits.