Vortex 337CZK-40 CAT5 Aluminum Rear Sprocket 520 Pitch 40-Tooth Black

The Vortex 337CZK-40 is a CAT5 aluminum rear sprocket featuring a 520 pitch and 40 teeth, finished in a satin black anodized coating. Engineered for street and performance motorcycle applications, this sprocket delivers an ideal combination of lightweight construction and durability.

Key Features:

• 40-tooth, 520-pitch rear sprocket configuration
• Black anodized finish for corrosion resistance and aggressive styling
• Manufactured from a specially formulated aluminum alloy per Vortex specifications
• 100% CNC manufactured in the USA to precise tolerances
• Vortex patented tooth design increases sprocket longevity and reduces wear
• Lightweight construction reduces rotating mass for improved throttle response and acceleration
• Part of the proven Vortex CAT5 sprocket series

Vortex Racing is a trusted name in motorcycle performance drivetrain components. The 337CZK-40 is an excellent choice for riders looking to fine-tune their gear ratio, reduce unsprung weight, or replace a worn OEM sprocket with a high-quality aftermarket upgrade.