Vortex 206ZK-57 CAT5 Rear Sprocket 420 Pitch 57 Tooth Black Aluminum

The Vortex 206ZK-57 CAT5 Rear Sprocket is a premium 57-tooth aluminum racing sprocket designed for 420 pitch chain applications. This lightweight performance sprocket is engineered for riders seeking maximum acceleration and gearing flexibility on mini bikes and small displacement motorcycles.

Key Features:

• 57 teeth for extreme low-end torque and acceleration
• 420 pitch chain compatibility
• CNC machined from specially formulated 7075-T6 aluminum alloy
• 100% manufactured in the USA to exacting tolerances
• Anodized black finish with contrasting silver machine cuts
• Vortex patented tooth design for increased longevity
• Unique tooth profile ensures optimal chain hold and release
• Lightweight construction reduces unsprung weight

The CAT5 Series represents Vortex's commitment to precision engineering, with each sprocket anodized in color first, then CNC machined to produce a distinctive colored sprocket with silver highlights. The proprietary tooth design increases sprocket life while maintaining perfect chain engagement. Trusted by racing champions worldwide, Vortex sprockets deliver performance and durability that exceeds OEM standards.