Vortex Racing V4 43 Tooth 520 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 520 rear sprocket, part number vtx526AZKV4-43. Designed for street, track, and performance applications, this black aluminum sprocket builds on Vortex Racing’s proven CAT5 platform with a lighter, more aggressive design. Reduced rotating mass helps improve acceleration, throttle response, handling, and overall motorcycle agility.

• 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 help reduce unsprung and rotating weight


• Manufactured in the USA to meet demanding powersports performance standards

The Vortex Racing V4 sprocket is engineered for riders who want responsive drivetrain performance without sacrificing durability. Its precise manufacturing helps maintain consistent chain engagement, while the 43-tooth configuration can be used to tailor final-drive gearing for specific riding conditions and performance goals. Always verify chain size, gearing requirements, and motorcycle compatibility before installation.
This 520 rear sprocket fits select Suzuki applications, including the 2004-2005 GSX-R750, 2006-2007 GSX-R600, 2007-2008 GSF1250S Bandit, 2007-2008 GSX-R1000, 2008 GSX1300BK B-King, and 2008 GSX1300R Hayabusa. With its lightweight construction, accurate concentricity, and race-inspired V4 design, the Vortex Racing vtx526AZKV4-43 is a practical choice for upgrading the final-drive system on compatible motorcycles.

Features:

• 43-tooth 520 rear sprocket for compatible Suzuki motorcycles

• Lightweight V4 design reduces rotating mass compared with the CAT5 sprocket

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

• Excellent concentricity for smooth, quiet operation

• Supports efficient power transfer and responsive drivetrain performance

• 10-15% lighter than the CAT5 design

• Manufactured in the USA

• Black finish for a performance-oriented appearance

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