Vortex 422ZK-50 CAT5 Black Aluminum Rear Sprocket 420 Pitch 50-Tooth

The Vortex 422ZK-50 is a lightweight CAT5 aluminum rear sprocket featuring a black anodized finish with contrasting silver machine cuts. Engineered for motorcycle racing and performance street use, this 50-tooth, 420-pitch sprocket delivers the precision and durability that Vortex Racing is known for worldwide.

Key Features:

• 420 Pitch / 50 Teeth — precision sizing for compatible drivetrain applications
• Lightweight CAT5 aluminum construction — reduces unsprung weight for improved handling and acceleration
• 100% CNC manufactured in the U.S.A. — machined to the tightest tolerances in the industry
• Specially formulated alloy per Vortex specifications for superior strength-to-weight ratio
• Saber tooth groove design — patented tooth profile increases sprocket longevity and promotes smooth chain engagement
• Black anodized finish with contrasting silver machine cuts for a premium race-ready appearance
• Color anodizing excludes sweeps, mud grooves, and teeth — keeping critical wear surfaces bare for maximum durability

Vortex Racing has been a trusted name in U.S.-based motorcycle racing components for over 15 years, supplying top professional race teams across Motocross, Supercross, Road Racing, Flat Track, and Minibike disciplines. The CAT5 rear sprocket line represents Vortex's patented sprocket design — unlike anything else on the market.