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, part number vtx435CZKV4-43. Designed as the next generation of Vortex aluminum rear sprockets, the V4 builds on the proven CAT5 platform with a lighter, more aggressive profile. Reduced rotating mass can help 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 rotating mass


• Black finish provides a clean, performance-oriented appearance


• Manufactured in the USA by Vortex Racing

This Vortex Racing V4 sprocket is engineered for compatibility with 525 chain systems and is available in a 43-tooth configuration to support responsive gearing characteristics. Its precision manufacturing helps maintain consistent chain engagement while contributing to smooth operation and effective power delivery. The lightweight aluminum construction is well suited to riders seeking improved performance without adding unnecessary rotating weight.
Fitment includes select Yamaha and Suzuki motorcycles, including the 1998-2003 Yamaha YZF-R1, 1999 Yamaha YZF-R7, and 2011-2013 Suzuki GSX-R600. Always verify the motorcycle model, year, chain size, tooth count, and drivetrain specifications before installation. Professional installation is recommended to ensure correct alignment, torque, and chain adjustment.

Features:

• 43-tooth rear sprocket for 525 chain applications

• V4 design developed from the proven Vortex CAT5 platform

• Precision-machined 7075-T6 aluminum construction

• 10-15% lighter than the CAT5 design

• Excellent concentricity for smooth, quiet operation

• Reduced rotating mass for improved acceleration and handling response

• Black finish

• Manufactured in the USA

• Fits select Yamaha YZF-R1, Yamaha YZF-R7, and Suzuki GSX-R600 models

Fitment:
Kawasaki CX500 Ninja 7 Hybrid Base 2024
Kawasaki EX500 Ninja 500 Base 2024
Kawasaki EX500 Ninja 500 Base 2025
Kawasaki EX500 Ninja 500 Base 2026
Kawasaki EX500 Ninja 500 40th Anniversary Edition ABS Base 2024
Kawasaki EX500 Ninja 500 ABS Base 2024
Kawasaki EX500 Ninja 500 ABS Base 2025
Kawasaki EX500 Ninja 500 ABS Base 2026
Kawasaki EX500 Ninja 500 ABS KRT Edition Base 2024
Kawasaki EX500 Ninja 500 KRT Edition Base 2024
Kawasaki EX500 Ninja 500 KRT Edition Base 2025
Kawasaki EX500 Ninja 500 SE ABS Base 2025
Kawasaki EX500 Ninja 500 SE ABS Base 2026
Kawasaki EX500 Ninja 500 SE KRT Edition ABS Base 2025
Suzuki GSX-R600 Base 2010
Suzuki GSX-R600 Base 2011
Suzuki GSX-R600 Base 2012
Suzuki GSX-R600 Base 2013
Suzuki GSX-R600 Base 2014
Suzuki GSX-R600 Base 2015
Suzuki GSX-R600 Base 2016
Suzuki GSX-R600 Base 2017
Suzuki GSX-R600 Base 2018
Suzuki GSX-R600 Base 2019
Suzuki GSX-R600 Base 2020
Suzuki GSX-R600 Base 2021
Suzuki GSX-R600 Base 2022
Suzuki GSX-R600 Base 2023
Suzuki GSX-R600 Base 2024
Suzuki GSX-R600 Base 2025
Suzuki GSX-R600 Base 2026
Suzuki GSX-R600 100th Anniversary Edition Base 2021
Suzuki GSX-R600Z Base 2022
Suzuki GSX-R600Z Base 2023
Suzuki GSX-R600Z Base 2024
Suzuki GSX-R600Z Base 2025
Suzuki GSX-R600Z 40th Anniversary Base 2026
Suzuki GSX-S750 Base 2015
Suzuki GSX-S750 Base 2016
Suzuki GSX-S750 Base 2018
Suzuki GSX-S750 Base 2020
Suzuki GSX-S750 Base 2022
Suzuki GSX-S750 ABS Base 2019
Suzuki GSX-S750Z Base 2015
Suzuki GSX-S750Z Base 2018
Suzuki GSX-S750Z Base 2019
Suzuki GSX-S750Z Base 2021
Suzuki GSX-S750Z Base 2023
Suzuki GSX-S750Z ABS Base 2020
Suzuki GSX-S750Z ABS Base 2021
Suzuki GSX-S750Z ABS Base 2022
Suzuki GSX-S750Z ABS Base 2023
Yamaha FZ-07 Base 2015
Yamaha FZ-07 Base 2016
Yamaha FZ-07 Base 2017
Yamaha FZ-10 Base 2017
Yamaha MT-07 Base 2014
Yamaha MT-07 Base 2015
Yamaha MT-07 Base 2016
Yamaha MT-07 Base 2018
Yamaha MT-07 Base 2019
Yamaha MT-07 Base 2020
Yamaha MT-07 Base 2021
Yamaha MT-07 Base 2022
Yamaha MT-07 Base 2023
Yamaha MT-07 Base 2024
Yamaha MT-10 Base 2018
Yamaha MT-10 Base 2019
Yamaha MT-10 Base 2020
Yamaha MT-10 Base 2021
Yamaha XSR700 Base 2015
Yamaha XSR700 Base 2016
Yamaha XSR700 Base 2017
Yamaha XSR700 Base 2018
Yamaha XSR700 Base 2019
Yamaha XSR700 Base 2020
Yamaha XSR700 Base 2021
Yamaha XSR700 Base 2022
Yamaha XSR700 Base 2023
Yamaha XSR700 Base 2024
Yamaha XSR700 Base 2025
Yamaha XSR700 Base 2026
Yamaha YZF-R1 Base 1998
Yamaha YZF-R1 Base 1999
Yamaha YZF-R1 Base 2000
Yamaha YZF-R1 Base 2001
Yamaha YZF-R1 Base 2002
Yamaha YZF-R1 Base 2003
Yamaha YZF-R1 Base 2020
Yamaha YZF-R1 Base 2021
Yamaha YZF-R1 Base 2022
Yamaha YZF-R1 Base 2023
Yamaha YZF-R1 Base 2024
Yamaha YZF-R1 Base 2025
Yamaha YZF-R1 World GP 60th Anniversary Edition Base 2022
Yamaha YZF-R1M Base 2020
Yamaha YZF-R1M Base 2021
Yamaha YZF-R1M Base 2022
Yamaha YZF-R1M Base 2023
Yamaha YZF-R1M Base 2024
Yamaha YZF-R1M Base 2025
Yamaha YZF-R7 Base 1999
Yamaha YZF-R7 Base 2022
Yamaha YZF-R7 Base 2023
Yamaha YZF-R7 World GP 60th Anniversary Edition Base 2022
Yamaha YZF-R9 Base 2025
Yamaha YZF-R9 Base 2026