Vortex 405ZO-40 Rear Sprocket Pitch Aluminum Sprockets - 40-Tooth 520

The Vortex 405ZO-40 is a high-performance 40-tooth rear sprocket designed for 520 pitch chain applications. Manufactured from premium 7075-T6 aircraft-grade aluminum, this sprocket delivers exceptional strength while significantly reducing rotating mass compared to steel alternatives, helping transfer more power to the pavement.

Key Features:

• 40-tooth configuration for 520 pitch chain systems
• Constructed from lightweight 7075-T6 aluminum alloy
• Patented tooth design increases sprocket longevity and chain engagement
• Precision-machined to the tightest tolerances for optimal performance
• Significantly lighter than OEM steel sprockets for reduced unsprung weight
• Ideal for sportbikes and performance applications

Vortex Racing has been manufacturing premium motorcycle racing components since 1995, with products tested on the track by professional race teams worldwide. Each sprocket is engineered to exacting standards to ensure reliable performance in demanding conditions. The lightweight aluminum construction provides a noticeable improvement in acceleration response while the unique tooth profile helps maximize chain life and drivetrain efficiency.