Vortex 642AKV4-41 CAT5 Aluminum Rear Sprocket 41-Tooth Black Anodized

The Vortex 642AKV4-41 is a 41-tooth CAT5 aluminum rear sprocket finished in a black anodized hardcoat. Designed for serious street and track riders, this sprocket delivers the ideal balance of lightweight performance and long-lasting durability.

Key Features:

• Lightweight aluminum construction — reduces rotating mass for improved acceleration, deceleration, and throttle response
• Black anodized PTFE hardcoat finish — bonds to the aluminum surface to create a harder, more wear-resistant coating with reduced friction
• 100% CNC machined in the USA — manufactured to the tightest tolerances from a specially formulated alloy per Vortex specifications
• Vortex patented saber tooth groove design — unique tooth geometry engineered to extend sprocket life and improve chain engagement
• CAT5 anodized — color anodizing applied to swept areas for a distinctive two-tone black and silver appearance
• 41 teeth — direct OEM replacement tooth count for compatible applications

Vortex Racing has been manufacturing precision motorcycle drivetrain components in the USA since 1995, supplying professional race teams across Supercross, Motocross, Road Racing, and Flat Track. The 642AKV4-41 rear sprocket is a proven performance upgrade or OEM-equivalent replacement built to race-quality standards.