# Vortex Racing V4 40 Tooth 520 Rear Sprocket - Hardcoat

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

This Part Fits:

Year

Make

Model

Submodel

2007-2008

Kawasaki

Z1000

Base

2006-2007

Kawasaki

ZX1000 Ninja ZX-10R

Base

1998-2002

Kawasaki

ZX600 Ninja ZX-6R

Base

2003-2004,2025-2026

Kawasaki

ZX636 Ninja ZX-6R

Base

2025-2026

Kawasaki

ZX636 Ninja ZX-6R ABS

Base

2025

Kawasaki

ZX636 Ninja ZX-6R ABS KRT Edition

Base

2025

Kawasaki

ZX636 Ninja ZX-6R KRT Edition

Base

## Details

- **Price:** 120.19 CAD
- **Vendor:** Vortex Racing
- **Type:** Sprockets

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 120.19 CAD | In stock |

## Images

- Photo - Primary
- Photo - Close Up

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/vortex-racing-v4-40-tooth-520-rear-sprocket-hardcoat-2)
> Updated: 2026-09-12