Vortex 642CZK-47 CAT5 Aluminum Rear Sprocket 47T Black

The Vortex 642CZK-47 is a 47-tooth CAT5 series lightweight aluminum rear sprocket finished in a sleek black anodized coating. Designed for performance-minded street and track riders, this sprocket delivers a significant weight reduction over OEM steel units, reducing rotating mass for sharper throttle response and improved acceleration.

Key Features:

• 47-tooth rear sprocket for tuned gear ratio and increased low-end torque
• CAT5 series — Vortex's CNC-machined aluminum sprocket line built to racing standards
• Black anodized finish for corrosion resistance and aggressive appearance
• Specially formulated aluminum alloy per Vortex specifications for optimal strength-to-weight ratio
• Vortex patented tooth design engineered to increase sprocket longevity
• 100% CNC manufactured in the USA to precise tolerances
• Lightweight construction reduces rotating mass for improved acceleration and handling

The Vortex 642CZK-47 is part of the trusted 642C sprocket family, compatible with a wide range of sport bikes using the corresponding chain pitch. Whether upgrading from a worn OEM sprocket or fine-tuning your gearing for the track, this Vortex sprocket delivers the precision and durability that racers and enthusiasts demand.