Vortex 490ZK-43 Black 43-Tooth 520-Pitch CAT5 Aluminum Rear Sprocket

The Vortex 490ZK-43 is a 43-tooth, 520-pitch CAT5 aluminum rear sprocket finished in a black anodized coating. Designed for performance-focused riders and racers, this sprocket is engineered to deliver reliable power transfer while reducing rotating mass compared to heavier steel alternatives.

Key Features:

• 43-Tooth / 520-Pitch — direct-fit rear sprocket for compatible 520 chain drive systems
• CAT5 Lightweight Aluminum Construction — specially formulated alloy per Vortex specifications for an optimal strength-to-weight ratio
• 100% CNC Manufactured in the USA — precision machined to the tightest tolerances for consistent fitment and performance
• Black Anodized Finish — corrosion-resistant anodizing provides lasting protection and aggressive styling
• Vortex Patented Tooth Design — proprietary tooth geometry promotes smooth chain engagement and extended sprocket longevity
• Reduces Rotating Mass — lightweight aluminum construction improves acceleration, deceleration, and directional response

Vortex Racing has been manufacturing top-quality motorcycle racing components in the USA since 1995. Their sprockets are tested on the track with direct feedback from professional race teams worldwide, making the 490ZK-43 a trusted choice for both street performance and competitive racing applications.