Vortex 604ZB-42 Steel Rear Sprocket 42-Tooth Black

The Vortex 604ZB-42 is a 42-tooth steel rear sprocket featuring an electro-plated satin black finish. Built to Vortex Racing's exacting standards, this sprocket is manufactured from carbon steel alloy and engineered for dependable performance on the street or track.

Key Features:

• 42-Tooth rear sprocket for precise gearing tuning
• Carbon steel alloy construction per Vortex specifications for maximum strength and durability
• Electro-plated satin black finish to resist corrosion
• Hardened teeth engineered to maintain strength over extended mileage
• Patented Vortex tooth profile — unique design that increases sprocket longevity compared to conventional sprockets
• Cupped body design reduces weight without sacrificing structural integrity
• Made in the USA by Vortex Racing

Vortex Racing has been manufacturing top-quality motorcycle drivetrain components for Motocross, Supercross, Road Racing, and Flat Track Racing for over 15 years. Every component is built to tight tolerances and tested with feedback from professional race teams worldwide. The 604ZB-42 is a direct-fit steel rear sprocket replacement designed for riders who demand long service life and consistent performance.