Vortex Racing V4 43 Tooth 525 Rear Sprocket - Black

The next generation of Vortex aluminum rear sprockets, V4 builds on the long-running CAT5 sprocket platform with a lighter, more aggressive design. Reduced rotating mass improves acceleration, throttle response, handling, and overallagility. Ideal for street, track, and performance applications.

• Excellent concentricity for smooth, quiet operation and efficient power transfer
• Precision-machined from high-strength 7075-T6 aluminum
• 10-15% Lighter than CAT5
• Manufactured in the USA

Upgrade your motorcycle’s final-drive performance with the Vortex Racing V4 43-tooth 525 rear sprocket. Designed as the next generation of Vortex aluminum rear sprockets, the V4 builds on the proven CAT5 platform with a lighter, more aggressive design. Reduced rotating mass helps improve acceleration, throttle response, handling, and overall agility for street riding, track use, and other performance applications.

• Excellent concentricity supports smooth, quiet operation and efficient power transfer


• Precision-machined from high-strength 7075-T6 aluminum for dependable performance


• 10-15% lighter than the previous CAT5 design to reduce unsprung and rotating mass


• 43-tooth configuration with 525 chain compatibility


• Black finish provides a clean, performance-focused appearance


• Manufactured in the USA

The Vortex Racing V4 rear sprocket is engineered for riders who want responsive power delivery without sacrificing durability. Its precision machining helps maintain accurate chain alignment and consistent engagement, while the high-strength 7075-T6 aluminum construction delivers an excellent balance of low weight and structural performance. The 43-tooth gearing can be used to tailor final-drive characteristics to suit a variety of motorcycle setups and riding preferences.
Part number vtx840CZKV4-43 identifies this Vortex Racing sprocket for dependable fitment reference. Confirm your motorcycle’s required chain size, sprocket specifications, and intended gearing before installation. Professional installation is recommended, and all related drivetrain components should be inspected to ensure proper condition and adjustment.

Features:

• Brand: Vortex Racing

• Part Number: vtx840CZKV4-43

• Sprocket Type: V4 rear sprocket

• Tooth Count: 43 teeth

• Chain Size: 525

• Material: Precision-machined 7075-T6 aluminum

• Weight Reduction: 10-15% lighter than the CAT5 design

• Performance: Reduced rotating mass improves acceleration, throttle response, handling, and agility

• Operation: Excellent concentricity for smooth, quiet operation and efficient power transfer

• Finish: Black

• Manufacturing: Made in the USA

• Applications: Suitable for street, track, and performance use