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 drivetrain with the Vortex Racing V4 43-tooth 525 rear sprocket, part number vtx526ZKV4-43. 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 Vortex CAT5 sprocket design


• Manufactured in the USA

The black Vortex Racing V4 sprocket is engineered for riders seeking responsive drivetrain performance without unnecessary rotating weight. Its precision-machined construction delivers reliable chain engagement and consistent power transfer, while the 43-tooth configuration provides a performance-oriented gearing option for compatible motorcycles. The durable aluminum design is suited to both demanding track environments and spirited street applications.
This Vortex Racing rear sprocket fits select Suzuki motorcycles, including the 2004–2006 GSX-R750 and GSX-R600 models, 2007 Suzuki GSF1250S Bandit, 2007 Suzuki GSX-R1000, 2008 Suzuki GSF1250S Bandit, 2008 Suzuki GSX1300BK B-King, 2008 Suzuki GSX1300R Hayabusa, and 2008 Suzuki GSX-R1000. Verify motorcycle year, model, chain size, and existing gearing before installation. Professional installation is recommended to ensure correct alignment, torque, and drivetrain adjustment.

Features:

• 43-tooth rear sprocket for compatible 525 chain applications

• V4 design reduces rotating mass for improved acceleration and handling

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

• 10–15% lighter than the Vortex CAT5 sprocket design

• Excellent concentricity for smooth, quiet operation

• Efficient power transfer through precise chain engagement

• Black finish

• Manufactured in the USA

• Fits select Suzuki GSX-R, Bandit, B-King, and Hayabusa models

Fitment:
Suzuki GSF1250S Bandit Base 2007
Suzuki GSF1250S Bandit Base 2008
Suzuki GSF1250S Bandit Base 2009
Suzuki GSX-R1000 Base 2007
Suzuki GSX-R1000 Base 2008
Suzuki GSX-R600 Base 2006
Suzuki GSX-R600 Base 2007
Suzuki GSX-R600 Base 2008
Suzuki GSX-R600 Base 2009
Suzuki GSX-R600 Base 2010
Suzuki GSX-R750 Base 2004
Suzuki GSX-R750 Base 2005
Suzuki GSX-R750 Base 2026
Suzuki GSX-R750Z 40th Anniversary Base 2026
Suzuki GSX1250FA Base 2011
Suzuki GSX1300BK B-King Base 2008
Suzuki GSX1300R Hayabusa Base 2008
Suzuki GSX1300R Hayabusa Base 2009
Suzuki GSX1300R Hayabusa Base 2010
Suzuki GSX1300R Hayabusa Base 2011
Suzuki GSX1300R Hayabusa Base 2012
Suzuki GSX1300R Hayabusa Base 2013
Suzuki GSX1300R Hayabusa Base 2014
Suzuki GSX1300R Hayabusa Base 2015
Suzuki GSX1300R Hayabusa Base 2016
Suzuki GSX1300R Hayabusa Base 2017
Suzuki GSX1300R Hayabusa Base 2018
Suzuki GSX1300R Hayabusa Base 2019
Suzuki GSX1300R Hayabusa Base 2020
Suzuki GSX1300R Hayabusa Base 2022
Suzuki GSX1300R Hayabusa Base 2023
Suzuki GSX1300R Hayabusa Base 2024
Suzuki GSX1300R Hayabusa Base 2025