Vortex Racing V4 45 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 final-drive performance with the Vortex Racing V4 45-tooth 520 rear sprocket, part number vtx526AZKV4-45. 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 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 previous CAT5 design to help reduce rotating mass


• Black finish provides a clean, performance-focused appearance


• Manufactured in the USA by Vortex Racing

This Vortex Racing V4 rear sprocket is engineered for reliable chain engagement and consistent operation under demanding riding conditions. Its precision-machined aluminum construction balances strength and weight reduction, helping deliver responsive power delivery without unnecessary rotational mass. The 45-tooth configuration is designed for motorcycles using a 520 chain system and can help tailor final-drive gearing to suit the rider’s performance preferences.

Application coverage includes select Suzuki GSX-R600, Suzuki GSX-R750, Triumph Daytona 600, and Triumph Daytona 650 models from 2001 through 2007. Verify the motorcycle model, year, chain size, tooth count, and sprocket compatibility before installation. Professional installation is recommended, and all chain, sprocket, and fastener components should be inspected and adjusted according to the motorcycle manufacturer’s service requirements.

Features:

• V4 45-tooth rear sprocket for 520 chain applications

• Precision-machined 7075-T6 aluminum construction

• 10–15% lighter than the Vortex CAT5 design

• Excellent concentricity for smooth, quiet operation

• Efficient power transfer and reduced rotating mass

• Black finish

• Manufactured in the USA

• Fits select 2001–2007 Suzuki GSX-R600, Suzuki GSX-R750, Triumph Daytona 600, and Triumph Daytona 650 models

Fitment:
Suzuki GSX-R600 Base 2001
Suzuki GSX-R600 Base 2002
Suzuki GSX-R600 Base 2003
Suzuki GSX-R600 Base 2004
Suzuki GSX-R600 Base 2005
Suzuki GSX-R600 Base 2023
Suzuki GSX-R600 Base 2024
Suzuki GSX-R600 Base 2025
Suzuki GSX-R600 Base 2026
Suzuki GSX-R600Z Base 2023
Suzuki GSX-R600Z Base 2024
Suzuki GSX-R600Z Base 2025
Suzuki GSX-R600Z 40th Anniversary Base 2026
Suzuki GSX-R750 Base 2006
Suzuki GSX-R750 Base 2007
Suzuki GSX-R750 Base 2008
Suzuki GSX-R750 Base 2009
Triumph Daytona 600 Base 2003
Triumph Daytona 600 Base 2004
Triumph Daytona 650 Base 2005