Vortex 490ZK-42 520 Pitch CAT5 Aluminum Rear Sprocket 42-Tooth Black

The Vortex 490ZK-42 is a 42-tooth, 520-pitch CAT5 aluminum rear sprocket finished in a striking black anodize with contrasting silver machined accents. Designed for street and sport motorcycle applications, this sprocket delivers the performance and precision that Vortex Racing is known for worldwide.

Key Features:

• Lightweight CAT5 aluminum construction reduces rotating mass for improved throttle response and acceleration
• 100% CNC manufactured in the USA to exacting tolerances
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Black anodized finish with contrasting silver machine cuts for a premium appearance and corrosion resistance
• Vortex patented tooth design increases sprocket longevity and chain engagement
• 520 pitch for compatibility with standard 520 chain setups
• 42-tooth rear sprocket for fine-tuning gear ratios

Vortex sprockets are the choice of professional racers and serious street riders alike. The 490ZK-42 allows riders to optimize their gearing for improved acceleration or top-end speed while shedding unnecessary weight compared to a stock steel sprocket.