Vortex 405ZO-31 CAT5 Aluminum Rear Sprocket 31 Tooth 420 Pitch

The Vortex 405ZO-31 is a high-performance 31-tooth aluminum rear sprocket designed for 420 pitch motorcycle drivetrain applications. This sprocket is part of Vortex's iconic CAT5 series, featuring their patented tooth profile design that increases sprocket longevity and optimizes power transfer.

Key Features:

• 31-tooth configuration for 420 pitch chains
• Lightweight aluminum construction - approximately 50% lighter than steel sprockets
• CNC machined in the USA from specially formulated aluminum alloy
• Anodized finish prevents corrosion and oxidation
• Patented tooth design increases sprocket life and performance
• Two-tone machined appearance

Vortex aluminum sprockets deliver significant weight savings for improved acceleration and reduced rotational mass. The anodized coating provides corrosion resistance while the precision CNC machining ensures optimal chain engagement and reliable performance. Ideal for racing applications and performance-oriented riders on smaller displacement motorcycles including mini bikes and entry-level sport bikes that use 420 chain pitch.