Vortex Racing V4 45 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 45-tooth 525 rear sprocket. Built as the next generation of the proven Vortex CAT5 platform, this black aluminum sprocket features a lighter, more aggressive design that helps reduce rotating mass. The result is improved acceleration, sharper throttle response, enhanced handling, and greater overall agility for street, track, and performance riding.

• 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 Vortex CAT5 sprocket to help reduce unsprung and rotating weight


• 45-tooth design works with compatible 525 chain drive systems


• Black finish provides a clean, performance-oriented 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 construction promotes consistent chain engagement and efficient transfer of engine power to the rear wheel, while the reduced weight can contribute to quicker response during acceleration and direction changes. The sprocket is a practical choice for replacement, gearing changes, or performance-focused drivetrain upgrades.
This Vortex Racing part number vtx526ZKV4-45 fits select Suzuki and Triumph motorcycles, including the 2001-2005 Suzuki GSX-R600, 2006-2007 Suzuki GSX-R750, 2003-2004 Triumph Daytona 600, and 2005 Triumph Daytona 650. Confirm your motorcycle’s year, model, chain size, mounting pattern, and desired gearing before installation. Professional installation is recommended to ensure correct alignment, chain tension, and fastener torque.

Features:

• 45-tooth rear sprocket for compatible 525 chain drive systems

• V4 design evolved from the proven Vortex CAT5 sprocket platform

• Reduced rotating mass for improved acceleration and throttle response

• Precision-machined from high-strength 7075-T6 aluminum

• Excellent concentricity for smooth, quiet operation

• 10-15% lighter than the CAT5 version

• Black finish

• Manufactured in the USA

• Fits select Suzuki GSX-R600, Suzuki GSX-R750, Triumph Daytona 600, and Triumph Daytona 650 models

Fitment:
Suzuki GSX-R600 Base 2001
Suzuki GSX-R600 Base 2002
Suzuki GSX-R600 Base 2003
Suzuki GSX-R600 Base 2004
Suzuki GSX-R600 Base 2005
Suzuki GSX-R600 Base 2023
Suzuki GSX-R600 Base 2024
Suzuki GSX-R600 Base 2025
Suzuki GSX-R600 Base 2026
Suzuki GSX-R600Z Base 2023
Suzuki GSX-R600Z Base 2024
Suzuki GSX-R600Z Base 2025
Suzuki GSX-R600Z 40th Anniversary Base 2026
Suzuki GSX-R750 Base 2006
Suzuki GSX-R750 Base 2007
Suzuki GSX-R750 Base 2008
Suzuki GSX-R750 Base 2009
Triumph Daytona 600 Base 2003
Triumph Daytona 600 Base 2004
Triumph Daytona 650 Base 2005