Vortex 642A-63 Aluminum Rear Sprocket 520 Pitch 63 Tooth Silver

The Vortex 642A-63 is a high-performance aluminum rear sprocket designed for 520 pitch chain systems. This lightweight racing sprocket features 63 teeth and is engineered to reduce rotating mass while improving acceleration and handling performance.

Key Features:

• 100% CNC machined from 7075 T6 billet aluminum for exceptional strength and reduced weight
• Vortex patented tooth design with saber tooth grooves for increased sprocket longevity
• Specially formulated aluminum alloy per Vortex specifications
• Silver anodized finish for corrosion resistance and professional appearance
• 520 pitch compatibility for conversion or replacement applications
• 63-tooth configuration for gearing customization

Vortex aluminum sprockets offer a significant weight advantage over OEM steel sprockets, resulting in reduced unsprung and rotating mass. This translates to improved throttle response, better acceleration, and enhanced handling characteristics. The precision CNC machining ensures perfect tooth profiles for optimal chain engagement and extended wear life.