Vortex 642AZK-40 CAT5 Rear Sprocket 520 Pitch 40 Tooth Black

The Vortex 642AZK-40 is a high-performance CAT5 aluminum racing rear sprocket designed for serious motorcycle enthusiasts. This lightweight CAT5 aluminum racing sprocket is 100% CNC manufactured in the U.S.A., featuring a 520 pitch with 40 teeth in a black anodized finish with contrasting silver machine cuts.

Key Features:

• Specially formulated alloy per Vortex specifications for optimal strength and durability
• Saber tooth grooves with unique tooth design increases sprocket longevity
• Vortex patented sprocket design is unlike any other sprocket
• Black anodized finish excludes sweeps, mud grooves and teeth for a striking appearance
• Precision CNC machined from aerospace-grade aluminum alloy
• Reduced weight compared to steel sprockets for improved performance

The CAT5 series represents Vortex's commitment to racing excellence, combining advanced engineering with proven track performance. The specially designed tooth profile and saber grooves work together to extend sprocket life while maintaining consistent power transfer throughout the drivetrain.