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 vtx454ZKV4-43. 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 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


• Manufactured in the USA

The black finish provides a clean, performance-focused appearance while the precision-machined construction is engineered for demanding powersports use. This sprocket is designed for riders seeking responsive drivetrain performance without unnecessary rotating weight. Its 43-tooth configuration and 525 chain compatibility make it a direct-fit performance replacement for select Kawasaki Ninja ZX-7R and ZX-7RR applications.
Fitment includes 1996–1999 Kawasaki ZX750 Ninja ZX-7R, 1996–1997 Kawasaki ZX750 Ninja ZX-7RR, and 2000–2003 Kawasaki ZX750 Ninja ZX-7R models. Verify your motorcycle’s year, model, chain size, and final-drive specifications before installation. For proper operation and component longevity, install with compatible drivetrain parts and follow the motorcycle manufacturer’s service procedures.

Features:

• 43-tooth rear sprocket for 525 chain applications

• Precision-machined 7075-T6 aluminum construction

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

• Excellent concentricity for smooth and quiet operation

• Reduced rotating mass for improved acceleration and throttle response

• Black finish

• Manufactured in the USA

• Fits select 1996–2003 Kawasaki ZX750 Ninja ZX-7R and ZX-7RR models

Fitment:
Kawasaki KLZ1000 Versys LT Base 2015
Kawasaki KLZ1000 Versys LT Base 2016
Kawasaki KLZ1000 Versys LT Base 2017
Kawasaki KLZ1000 Versys LT Base 2018
Kawasaki KLZ1000 Versys SE LT+ Base 2019
Kawasaki KLZ1000 Versys SE LT+ Base 2020
Kawasaki KLZ1000 Versys SE LT+ Base 2021
Kawasaki KLZ1000 Versys SE LT+ Base 2022
Kawasaki KLZ1000 Versys SE LT+ Base 2023
Kawasaki Z1000 Base 2010
Kawasaki Z1000 Base 2011
Kawasaki Z1000 Base 2012
Kawasaki Z750 Base 2004
Kawasaki Z750 Base 2005
Kawasaki Z750 Base 2006
Kawasaki Z750 Base 2007
Kawasaki Z750 Base 2008
Kawasaki Z750 Base 2009
Kawasaki Z750 Base 2010
Kawasaki Z750 Base 2011
Kawasaki Z750R Base 2011
Kawasaki Z750S Base 2005
Kawasaki Z750S Base 2006
Kawasaki ZR1000 Z1000 ABS Base 2014
Kawasaki ZR1000 Z1000 ABS Base 2015
Kawasaki ZR1000 Z1000 ABS Base 2016
Kawasaki ZX600 Ninja ZX-6R Base 2007
Kawasaki ZX600 Ninja ZX-6R Base 2008
Kawasaki ZX600 Ninja ZX-6R Base 2009
Kawasaki ZX600 Ninja ZX-6R Base 2010
Kawasaki ZX600 Ninja ZX-6R Base 2011
Kawasaki ZX600 Ninja ZX-6R Base 2012
Kawasaki ZX636 Ninja ZX-6R Base 2005
Kawasaki ZX636 Ninja ZX-6R Base 2006
Kawasaki ZX636 Ninja ZX-6R Base 2013
Kawasaki ZX636 Ninja ZX-6R Base 2014
Kawasaki ZX636 Ninja ZX-6R Base 2015
Kawasaki ZX636 Ninja ZX-6R Base 2016
Kawasaki ZX636 Ninja ZX-6R Base 2017
Kawasaki ZX636 Ninja ZX-6R Base 2018
Kawasaki ZX636 Ninja ZX-6R Base 2019
Kawasaki ZX636 Ninja ZX-6R Base 2020
Kawasaki ZX636 Ninja ZX-6R Base 2021
Kawasaki ZX636 Ninja ZX-6R Base 2022
Kawasaki ZX636 Ninja ZX-6R Base 2023
Kawasaki ZX636 Ninja ZX-6R Base 2024
Kawasaki ZX636 Ninja ZX-6R Base 2025
Kawasaki ZX636 Ninja ZX-6R Base 2026
Kawasaki ZX636 Ninja ZX-6R 30th Anniversary Base 2015
Kawasaki ZX636 Ninja ZX-6R 40th Anniversary Edition ABS Base 2024
Kawasaki ZX636 Ninja ZX-6R ABS Base 2013
Kawasaki ZX636 Ninja ZX-6R ABS Base 2014
Kawasaki ZX636 Ninja ZX-6R ABS Base 2015
Kawasaki ZX636 Ninja ZX-6R ABS Base 2016
Kawasaki ZX636 Ninja ZX-6R ABS Base 2017
Kawasaki ZX636 Ninja ZX-6R ABS Base 2018
Kawasaki ZX636 Ninja ZX-6R ABS Base 2019
Kawasaki ZX636 Ninja ZX-6R ABS Base 2020
Kawasaki ZX636 Ninja ZX-6R ABS Base 2023
Kawasaki ZX636 Ninja ZX-6R ABS Base 2024
Kawasaki ZX636 Ninja ZX-6R ABS Base 2025
Kawasaki ZX636 Ninja ZX-6R ABS Base 2026
Kawasaki ZX636 Ninja ZX-6R ABS 30th Anniversary Base 2015
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2016
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2017
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2018
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2019
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2020
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2021
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2022
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2023
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2024
Kawasaki ZX636 Ninja ZX-6R ABS KRT Edition Base 2025
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2016
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2017
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2018
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2022
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2023
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2024
Kawasaki ZX636 Ninja ZX-6R KRT Edition Base 2025
Kawasaki ZX750 Ninja ZX-7R Base 1996
Kawasaki ZX750 Ninja ZX-7R Base 1997
Kawasaki ZX750 Ninja ZX-7R Base 1998
Kawasaki ZX750 Ninja ZX-7R Base 1999
Kawasaki ZX750 Ninja ZX-7R Base 2000
Kawasaki ZX750 Ninja ZX-7R Base 2001
Kawasaki ZX750 Ninja ZX-7R Base 2002
Kawasaki ZX750 Ninja ZX-7R Base 2003
Kawasaki ZX750 Ninja ZX-7RR Base 1996
Kawasaki ZX750 Ninja ZX-7RR Base 1997