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 drivetrain with the Vortex Racing V4 45-tooth 520 rear sprocket, part number vtx452AZKV4-45. Designed for street, track, and performance applications, this lightweight aluminum sprocket builds on Vortex’s proven CAT5 platform with a more aggressive design and reduced rotating mass. The result is improved acceleration, throttle response, handling, and overall agility while maintaining dependable power transfer.

• Excellent concentricity promotes smooth, quiet operation and efficient power transfer


• Precision-machined from high-strength 7075-T6 aluminum for durability and 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

The Vortex Racing V4 sprocket is engineered for riders who want responsive drivetrain performance without sacrificing strength. Its precision manufacturing helps maintain consistent chain engagement and smooth operation, making it a strong choice for demanding riding conditions. The 45-tooth configuration can also be used to fine-tune final-drive gearing when paired with the appropriate 520 chain and front sprocket.
This Vortex Racing rear sprocket fits select Kawasaki motorcycles, including the 1991–1992 ZX750 Ninja ZX-7 and ZX-7R, 2009 EX650 Ninja 650R, and 2016 ZR800 Z800 ABS. Confirm your motorcycle’s year, model, chain size, tooth count, and sprocket mounting specifications before ordering. Part number vtx452AZKV4-45 identifies this black V4 520 rear sprocket.

Features:

• 45-tooth 520 rear sprocket for select Kawasaki motorcycles

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

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

• Reduced rotating mass helps improve acceleration, throttle response, handling, and agility

• Excellent concentricity supports smooth, quiet operation and efficient power transfer

• Black finish

• Manufactured in the USA

• Fits select 1991–1992 Kawasaki ZX750 Ninja ZX-7 and ZX-7R models, 2009 Kawasaki EX650 Ninja 650R, and 2016 Kawasaki ZR800 Z800 ABS

Fitment:
Kawasaki EX650 Ninja 650R Base 2009
Kawasaki ZR800 Z800 ABS Base 2016
Kawasaki ZX750 Ninja ZX-7 Base 1991
Kawasaki ZX750 Ninja ZX-7 Base 1992
Kawasaki ZX750 Ninja ZX-7R Base 1991
Kawasaki ZX750 Ninja ZX-7R Base 1992