Understanding Wheel Fitment: Stock vs Flush vs Aggressive

Stock fitment refers to the factory wheel and tyre setup designed by your vehicle manufacturer.

This setup is engineered to provide:

• Proper clearance within the guards
• Balanced handling and ride comfort
• No rubbing or interference
• Full compliance with Australian road laws

For most drivers, stock fitment is the safest and most reliable option. It ensures your vehicle performs exactly as intended, with no modifications required.

Flush fitment means the wheels sit neatly in line with the outer edge of the guards, creating a clean and balanced look.

This setup typically involves slightly wider wheels and adjusted offsets to bring the wheels outward, while still maintaining proper clearance.

When done correctly, flush fitment:

• Enhances the overall appearance of the vehicle
• Maintains safe and predictable handling
• Avoids rubbing or clearance issues
• Remains road-legal in Australia

Flush fitment is a great option for drivers who want an improved stance without compromising safety or compliance.

Aggressive fitment pushes the wheels further outward, often extending beyond the guard line for a more extreme appearance.

While this style is popular in some automotive communities, it’s important to understand the legal implications in Australia.

Under the National Code of Practice for Light Vehicle Construction and Modification (VSB 14):

• Wheels and tyres must not protrude beyond the vehicle’s guards
• The vehicle’s track width must remain within regulated limits

Any setup that causes the wheels to extend beyond the guards is not road legal.

Aggressive fitments may also require guard modifications, which can introduce additional safety and compliance concerns. For these reasons, they are generally not recommended for road use.