Vortex Racing V4 44 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 with the Vortex Racing V4 44-tooth 525 rear sprocket, part number vtx435CZKV4-44. Developed as the next generation of Vortex aluminum rear sprockets, the V4 design 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 reliable performance


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


• Black finish provides a clean, performance-oriented appearance


• Manufactured in the USA

Designed for 525-chain applications, this Vortex Racing rear sprocket delivers the precision and weight savings expected from a high-performance drivetrain component. Its accurate machining helps promote consistent chain engagement, while the durable aluminum construction reduces unsprung and rotating weight compared with heavier steel alternatives. The 44-tooth configuration can be used to fine-tune final-drive gearing based on the motorcycle, riding style, and desired performance characteristics.
This Vortex Racing V4 rear sprocket fits select Suzuki GSX-S1000, GSX-S1000 ABS, GSX-S1000F ABS, and GSX-S1000Z models from 2016 through 2019. Confirm the motorcycle’s year, model, chain size, and existing gearing before installation. For proper performance and service life, inspect the chain and front sprocket during installation and replace worn drivetrain components as needed.

Features:

• 44-tooth rear sprocket for 525-chain applications

• Precision-machined 7075-T6 aluminum construction

• 10–15% lighter than the Vortex CAT5 design

• Excellent concentricity for smooth, quiet operation

• Reduced rotating mass for improved acceleration and handling response

• Aggressive V4 profile for street, track, and performance use

• Black finish

• Manufactured in the USA

• Fits select 2016–2019 Suzuki GSX-S1000, GSX-S1000 ABS, GSX-S1000F ABS, and GSX-S1000Z models

Fitment:
Suzuki GSX-S1000 Base 2016
Suzuki GSX-S1000 Base 2017
Suzuki GSX-S1000 ABS Base 2016
Suzuki GSX-S1000 ABS Base 2017
Suzuki GSX-S1000 ABS Base 2018
Suzuki GSX-S1000 ABS Base 2019
Suzuki GSX-S1000 ABS Base 2020
Suzuki GSX-S1000 ABS Base 2022
Suzuki GSX-S1000 ABS Base 2023
Suzuki GSX-S1000 ABS Base 2024
Suzuki GSX-S1000 ABS Base 2025
Suzuki GSX-S1000F ABS Base 2016
Suzuki GSX-S1000F ABS Base 2017
Suzuki GSX-S1000F ABS Base 2018
Suzuki GSX-S1000F ABS Base 2020
Suzuki GSX-S1000FZ Base 2019
Suzuki GSX-S1000GT Base 2022
Suzuki GSX-S1000GT Base 2023
Suzuki GSX-S1000GT Base 2024
Suzuki GSX-S1000GT+ Base 2022
Suzuki GSX-S1000GT+ Base 2023
Suzuki GSX-S1000GT+ Base 2024
Suzuki GSX-S1000GT+ Base 2025
Suzuki GSX-S1000GX+ Base 2024
Suzuki GSX-S1000GX+ Base 2025
Suzuki GSX-S1000S Katana Base 2020
Suzuki GSX-S1000Z Base 2018
Suzuki GSX-S1000Z Base 2019