SAB | Mobile Roadworthy Certificate | Brisbane

SAB Safety Certificates Logo

Tire alignment Defined: Explanation and Key Concepts


Tire alignment plays a pivotal role in ensuring vehicle safety and compliance with roadworthy certificates. This term refers to the adjustment of a vehicle’s suspension components to ensure that the tires meet the road at the proper angle. In the context of roadworthy certificates, understanding tire alignment is crucial for maintaining overall vehicle safety and roadworthiness.


Tire alignment, also known as wheel alignment, involves adjusting the angles of the wheels to the vehicle manufacturer’s specifications. This adjustment ensures that the tires make proper contact with the road, promoting even tire wear and optimal vehicle handling.

Key Features or Components:

Key components of tire alignment include camber, caster, and toe. Camber refers to the vertical tilt of the wheel, caster involves the forward or backward tilt, and toe relates to the alignment of the tires concerning each other.

Importance in Roadworthy Certificates:

Proper tire alignment is vital for roadworthy certificates as it directly impacts vehicle safety and performance. Misaligned tires can lead to uneven tire wear, compromised handling, and reduced fuel efficiency, posing potential risks on the road.

Inspection Criteria:

During roadworthy inspections, technicians assess tire alignment by examining the angles of the wheels and ensuring they align with the manufacturer’s specifications. Any deviations may result in the vehicle failing to meet roadworthy standards.

Common Issues and Failures:

Common problems associated with tire alignment include uneven tire wear, drifting to one side, or a steering wheel that is off-center. These issues can lead to roadworthy certificate failures due to compromised vehicle safety.

Maintenance and Repairs:

Regular tire alignment checks and adjustments are essential for maintaining roadworthiness. Vehicle owners should seek professional alignment services if they notice signs of misalignment, ensuring optimal safety and performance.

Regulations and Standards:

Roadworthy certificates adhere to specific regulations and standards, which include requirements for tire alignment to ensure the safe operation of vehicles on the road.

Examples and Illustrations:

Tire alignment Defined: Explanation and Key Concepts