Vortex 410ZK-51 Rear Sprocket 420 Pitch 51 Tooth Silver Aluminum

The Vortex 410ZK-51 is a high-performance aluminum rear sprocket designed for mini bikes and pit bikes using 420-pitch drive systems. This 51-tooth sprocket is precision CNC machined from lightweight 7075-T6 aluminum alloy, providing significant weight savings over stock steel sprockets while maintaining exceptional strength and durability.

Key Features:

• 51 teeth for custom gearing options
• 420 pitch configuration for mini bike applications
• CNC machined from premium 7075-T6 billet aluminum
• Silver anodized finish prevents corrosion and oxidation
• Vortex patented tooth design increases sprocket longevity
• Unique tooth profile reduces drag and friction for improved acceleration
• Lightening holes reduce rotating mass without sacrificing strength
• Precision manufacturing ensures concentricity and proper chain alignment

Vortex Racing sprockets are trusted by professional race teams worldwide and manufactured to the tightest tolerances in the industry. The silver coating is applied before machining, creating the signature two-tone look with machined highlights. Ideal for riders looking to customize their gearing ratio for improved acceleration or altered power delivery on 420-pitch mini bikes and pit bikes.